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Commit 8b804643 authored by Dmitry Antipov's avatar Dmitry Antipov Committed by Kalle Valo
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wifi: ath9k: consistently use kstrtoX_from_user() functions 

Use 'kstrtoul_from_user()' and 'kstrtobool_from_user()'
where appropriate and thus avoid some code duplication.
Signed-off-by: default avatarDmitry Antipov <dmantipov@yandex.ru>
Acked-by: default avatarToke Høiland-Jørgensen <toke@toke.dk>
Signed-off-by: default avatarKalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20230726185046.188225-1-dmantipov@yandex.ru
parent 6edb4ba6
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Showing with 61 additions and 139 deletions
drivers/net/wireless/ath/ath9k/common-spectral.c
View file @ 8b804643
......@@ -855,16 +855,11 @@ static ssize_t write_file_spectral_short_repeat(struct file *file,
{
struct ath_spec_scan_priv *spec_priv = file->private_data;
unsigned long val;
char buf[32];
ssize_t len;
len = min(count, sizeof(buf) - 1);
if (copy_from_user(buf, user_buf, len))
return -EFAULT;
ssize_t ret;
buf[len] = '\0';
if (kstrtoul(buf, 0, &val))
return -EINVAL;
ret = kstrtoul_from_user(user_buf, count, 0, &val);
if (ret)
return ret;
if (val > 1)
return -EINVAL;
......@@ -903,17 +898,11 @@ static ssize_t write_file_spectral_count(struct file *file,
{
struct ath_spec_scan_priv *spec_priv = file->private_data;
unsigned long val;
char buf[32];
ssize_t len;
len = min(count, sizeof(buf) - 1);
if (copy_from_user(buf, user_buf, len))
return -EFAULT;
buf[len] = '\0';
if (kstrtoul(buf, 0, &val))
return -EINVAL;
ssize_t ret;
ret = kstrtoul_from_user(user_buf, count, 0, &val);
if (ret)
return ret;
if (val > 255)
return -EINVAL;
......@@ -951,16 +940,11 @@ static ssize_t write_file_spectral_period(struct file *file,
{
struct ath_spec_scan_priv *spec_priv = file->private_data;
unsigned long val;
char buf[32];
ssize_t len;
len = min(count, sizeof(buf) - 1);
if (copy_from_user(buf, user_buf, len))
return -EFAULT;
ssize_t ret;
buf[len] = '\0';
if (kstrtoul(buf, 0, &val))
return -EINVAL;
ret = kstrtoul_from_user(user_buf, count, 0, &val);
if (ret)
return ret;
if (val > 255)
return -EINVAL;
......@@ -999,16 +983,11 @@ static ssize_t write_file_spectral_fft_period(struct file *file,
{
struct ath_spec_scan_priv *spec_priv = file->private_data;
unsigned long val;
char buf[32];
ssize_t len;
len = min(count, sizeof(buf) - 1);
if (copy_from_user(buf, user_buf, len))
return -EFAULT;
ssize_t ret;
buf[len] = '\0';
if (kstrtoul(buf, 0, &val))
return -EINVAL;
ret = kstrtoul_from_user(user_buf, count, 0, &val);
if (ret)
return ret;
if (val > 15)
return -EINVAL;
......
drivers/net/wireless/ath/ath9k/debug.c
View file @ 8b804643
......@@ -96,21 +96,16 @@ static ssize_t read_file_debug(struct file *file, char __user *user_buf,
}
static ssize_t write_file_debug(struct file *file, const char __user *user_buf,
size_t count, loff_t *ppos)
size_t count, loff_t *ppos)
{
struct ath_softc *sc = file->private_data;
struct ath_common *common = ath9k_hw_common(sc->sc_ah);
unsigned long mask;
char buf[32];
ssize_t len;
ssize_t ret;
len = min(count, sizeof(buf) - 1);
if (copy_from_user(buf, user_buf, len))
return -EFAULT;
buf[len] = '\0';
if (kstrtoul(buf, 0, &mask))
return -EINVAL;
ret = kstrtoul_from_user(user_buf, count, 0, &mask);
if (ret)
return ret;
common->debug_mask = mask;
return count;
......@@ -191,16 +186,11 @@ static ssize_t write_file_ani(struct file *file,
struct ath_softc *sc = file->private_data;
struct ath_common *common = ath9k_hw_common(sc->sc_ah);
unsigned long ani;
char buf[32];
ssize_t len;
ssize_t ret;
len = min(count, sizeof(buf) - 1);
if (copy_from_user(buf, user_buf, len))
return -EFAULT;
buf[len] = '\0';
if (kstrtoul(buf, 0, &ani))
return -EINVAL;
ret = kstrtoul_from_user(user_buf, count, 0, &ani);
if (ret)
return ret;
if (ani > 1)
return -EINVAL;
......@@ -248,20 +238,15 @@ static ssize_t write_file_bt_ant_diversity(struct file *file,
struct ath_common *common = ath9k_hw_common(sc->sc_ah);
struct ath9k_hw_capabilities *pCap = &sc->sc_ah->caps;
unsigned long bt_ant_diversity;
char buf[32];
ssize_t len;
ssize_t ret;
len = min(count, sizeof(buf) - 1);
if (copy_from_user(buf, user_buf, len))
return -EFAULT;
ret = kstrtoul_from_user(user_buf, count, 0, &bt_ant_diversity);
if (ret)
return ret;
if (!(pCap->hw_caps & ATH9K_HW_CAP_BT_ANT_DIV))
goto exit;
buf[len] = '\0';
if (kstrtoul(buf, 0, &bt_ant_diversity))
return -EINVAL;
common->bt_ant_diversity = !!bt_ant_diversity;
ath9k_ps_wakeup(sc);
ath9k_hw_set_bt_ant_diversity(sc->sc_ah, common->bt_ant_diversity);
......@@ -792,16 +777,11 @@ static ssize_t write_file_reset(struct file *file,
struct ath_hw *ah = sc->sc_ah;
struct ath_common *common = ath9k_hw_common(ah);
unsigned long val;
char buf[32];
ssize_t len;
len = min(count, sizeof(buf) - 1);
if (copy_from_user(buf, user_buf, len))
return -EFAULT;
ssize_t ret;
buf[len] = '\0';
if (kstrtoul(buf, 0, &val))
return -EINVAL;
ret = kstrtoul_from_user(user_buf, count, 0, &val);
if (ret)
return ret;
if (val != 1)
return -EINVAL;
......@@ -886,16 +866,11 @@ static ssize_t write_file_regidx(struct file *file, const char __user *user_buf,
{
struct ath_softc *sc = file->private_data;
unsigned long regidx;
char buf[32];
ssize_t len;
ssize_t ret;
len = min(count, sizeof(buf) - 1);
if (copy_from_user(buf, user_buf, len))
return -EFAULT;
buf[len] = '\0';
if (kstrtoul(buf, 0, &regidx))
return -EINVAL;
ret = kstrtoul_from_user(user_buf, count, 0, &regidx);
if (ret)
return ret;
sc->debug.regidx = regidx;
return count;
......@@ -931,16 +906,11 @@ static ssize_t write_file_regval(struct file *file, const char __user *user_buf,
struct ath_softc *sc = file->private_data;
struct ath_hw *ah = sc->sc_ah;
unsigned long regval;
char buf[32];
ssize_t len;
len = min(count, sizeof(buf) - 1);
if (copy_from_user(buf, user_buf, len))
return -EFAULT;
ssize_t ret;
buf[len] = '\0';
if (kstrtoul(buf, 0, &regval))
return -EINVAL;
ret = kstrtoul_from_user(user_buf, count, 0, &regval);
if (ret)
return ret;
ath9k_ps_wakeup(sc);
REG_WRITE_D(ah, sc->debug.regidx, regval);
......@@ -1128,16 +1098,11 @@ static ssize_t write_file_wow(struct file *file, const char __user *user_buf,
{
struct ath_softc *sc = file->private_data;
unsigned long val;
char buf[32];
ssize_t len;
len = min(count, sizeof(buf) - 1);
if (copy_from_user(buf, user_buf, len))
return -EFAULT;
ssize_t ret;
buf[len] = '\0';
if (kstrtoul(buf, 0, &val))
return -EINVAL;
ret = kstrtoul_from_user(user_buf, count, 0, &val);
if (ret)
return ret;
if (val != 1)
return -EINVAL;
......@@ -1191,17 +1156,12 @@ static ssize_t write_file_tpc(struct file *file, const char __user *user_buf,
struct ath_softc *sc = file->private_data;
struct ath_hw *ah = sc->sc_ah;
unsigned long val;
char buf[32];
ssize_t len;
ssize_t ret;
bool tpc_enabled;
len = min(count, sizeof(buf) - 1);
if (copy_from_user(buf, user_buf, len))
return -EFAULT;
buf[len] = '\0';
if (kstrtoul(buf, 0, &val))
return -EINVAL;
ret = kstrtoul_from_user(user_buf, count, 0, &val);
if (ret)
return ret;
if (val > 1)
return -EINVAL;
......
drivers/net/wireless/ath/ath9k/dfs_debug.c
View file @ 8b804643
......@@ -99,17 +99,11 @@ static ssize_t write_file_dfs(struct file *file, const char __user *user_buf,
{
struct ath_softc *sc = file->private_data;
unsigned long val;
char buf[32];
ssize_t len;
len = min(count, sizeof(buf) - 1);
if (copy_from_user(buf, user_buf, len))
return -EFAULT;
buf[len] = '\0';
if (kstrtoul(buf, 0, &val))
return -EINVAL;
ssize_t ret;
ret = kstrtoul_from_user(user_buf, count, 0, &val);
if (ret)
return ret;
if (val == DFS_STATS_RESET_MAGIC)
memset(&sc->debug.stats.dfs_stats, 0,
sizeof(sc->debug.stats.dfs_stats));
......
drivers/net/wireless/ath/ath9k/htc_drv_debug.c
View file @ 8b804643
......@@ -375,16 +375,11 @@ static ssize_t write_file_debug(struct file *file, const char __user *user_buf,
struct ath9k_htc_priv *priv = file->private_data;
struct ath_common *common = ath9k_hw_common(priv->ah);
unsigned long mask;
char buf[32];
ssize_t len;
len = min(count, sizeof(buf) - 1);
if (copy_from_user(buf, user_buf, len))
return -EFAULT;
ssize_t ret;
buf[len] = '\0';
if (kstrtoul(buf, 0, &mask))
return -EINVAL;
ret = kstrtoul_from_user(user_buf, count, 0, &mask);
if (ret)
return ret;
common->debug_mask = mask;
return count;
......
drivers/net/wireless/ath/ath9k/tx99.c
View file @ 8b804643
......@@ -172,9 +172,8 @@ static ssize_t write_file_tx99(struct file *file, const char __user *user_buf,
{
struct ath_softc *sc = file->private_data;
struct ath_common *common = ath9k_hw_common(sc->sc_ah);
char buf[32];
bool start;
ssize_t len;
ssize_t ret;
int r;
if (count < 1)
......@@ -183,14 +182,9 @@ static ssize_t write_file_tx99(struct file *file, const char __user *user_buf,
if (sc->cur_chan->nvifs > 1)
return -EOPNOTSUPP;
len = min(count, sizeof(buf) - 1);
if (copy_from_user(buf, user_buf, len))
return -EFAULT;
buf[len] = '\0';
if (kstrtobool(buf, &start))
return -EINVAL;
ret = kstrtobool_from_user(user_buf, count, &start);
if (ret)
return ret;
mutex_lock(&sc->mutex);
......
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