scsi: aacraid: get rid of one level of indentation

  unsigned long byte_count = 0;
  nseg = scsi_dma_map(scsicmd);
  if (nseg < 0)
     return nseg;
  if (nseg) {
     ...
  }
  return byte_count;

is equal to

  unsigned long byte_count = 0;
  nseg = scsi_dma_map(scsicmd);
  if (nseg <= 0)
     return nseg;
  ...
  return byte_count;

No other code has changed.

[mkp: fix checkpatch complaints]
Signed-off-by: Nikola Pajkovsky <npajkovsky@suse.cz>
Reviewed-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/aacraid/aachba.c

@@ -3757,6 +3757,8 @@ static long aac_build_sg(struct scsi_cmnd *scsicmd, struct sgmap *psg)
 	struct aac_dev *dev;
 	unsigned long byte_count = 0;
 	int nseg;
+	struct scatterlist *sg;
+	int i;
 
 	dev = (struct aac_dev *)scsicmd->device->host->hostdata;
 	// Get rid of old data
@@ -3765,11 +3767,8 @@ static long aac_build_sg(struct scsi_cmnd *scsicmd, struct sgmap *psg)
 	psg->sg[0].count = 0;
 
 	nseg = scsi_dma_map(scsicmd);
-	if (nseg < 0)
+	if (nseg <= 0)
 		return nseg;
-	if (nseg) {
-		struct scatterlist *sg;
-		int i;
 
 	psg->count = cpu_to_le32(nseg);
 
@@ -3786,11 +3785,11 @@ static long aac_build_sg(struct scsi_cmnd *scsicmd, struct sgmap *psg)
 		byte_count = scsi_bufflen(scsicmd);
 	}
 	/* Check for command underflow */
-		if(scsicmd->underflow && (byte_count < scsicmd->underflow)){
+	if (scsicmd->underflow && (byte_count < scsicmd->underflow)) {
 		printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
 		       byte_count, scsicmd->underflow);
 	}
-	}
+
 	return byte_count;
 }
 
@@ -3801,6 +3800,8 @@ static long aac_build_sg64(struct scsi_cmnd *scsicmd, struct sgmap64 *psg)
 	unsigned long byte_count = 0;
 	u64 addr;
 	int nseg;
+	struct scatterlist *sg;
+	int i;
 
 	dev = (struct aac_dev *)scsicmd->device->host->hostdata;
 	// Get rid of old data
@@ -3810,11 +3811,8 @@ static long aac_build_sg64(struct scsi_cmnd *scsicmd, struct sgmap64 *psg)
 	psg->sg[0].count = 0;
 
 	nseg = scsi_dma_map(scsicmd);
-	if (nseg < 0)
+	if (nseg <= 0)
 		return nseg;
-	if (nseg) {
-		struct scatterlist *sg;
-		int i;
 
 	scsi_for_each_sg(scsicmd, sg, nseg, i) {
 		int count = sg_dma_len(sg);
@@ -3833,11 +3831,11 @@ static long aac_build_sg64(struct scsi_cmnd *scsicmd, struct sgmap64 *psg)
 		byte_count = scsi_bufflen(scsicmd);
 	}
 	/* Check for command underflow */
-		if(scsicmd->underflow && (byte_count < scsicmd->underflow)){
+	if (scsicmd->underflow && (byte_count < scsicmd->underflow)) {
 		printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
 		       byte_count, scsicmd->underflow);
 	}
-	}
+
 	return byte_count;
 }
 
@@ -3845,6 +3843,8 @@ static long aac_build_sgraw(struct scsi_cmnd *scsicmd, struct sgmapraw *psg)
 {
 	unsigned long byte_count = 0;
 	int nseg;
+	struct scatterlist *sg;
+	int i;
 
 	// Get rid of old data
 	psg->count = 0;
@@ -3856,11 +3856,8 @@ static long aac_build_sgraw(struct scsi_cmnd *scsicmd, struct sgmapraw *psg)
 	psg->sg[0].flags = 0;
 
 	nseg = scsi_dma_map(scsicmd);
-	if (nseg < 0)
+	if (nseg <= 0)
 		return nseg;
-	if (nseg) {
-		struct scatterlist *sg;
-		int i;
 
 	scsi_for_each_sg(scsicmd, sg, nseg, i) {
 		int count = sg_dma_len(sg);
@@ -3882,11 +3879,11 @@ static long aac_build_sgraw(struct scsi_cmnd *scsicmd, struct sgmapraw *psg)
 		byte_count = scsi_bufflen(scsicmd);
 	}
 	/* Check for command underflow */
-		if(scsicmd->underflow && (byte_count < scsicmd->underflow)){
+	if (scsicmd->underflow && (byte_count < scsicmd->underflow)) {
 		printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
 		       byte_count, scsicmd->underflow);
 	}
-	}
+
 	return byte_count;
 }
 
@@ -3895,15 +3892,14 @@ static long aac_build_sgraw2(struct scsi_cmnd *scsicmd,
 {
 	unsigned long byte_count = 0;
 	int nseg;
-
-	nseg = scsi_dma_map(scsicmd);
-	if (nseg < 0)
-		return nseg;
-	if (nseg) {
 	struct scatterlist *sg;
 	int i, conformable = 0;
 	u32 min_size = PAGE_SIZE, cur_size;
 
+	nseg = scsi_dma_map(scsicmd);
+	if (nseg <= 0)
+		return nseg;
+
 	scsi_for_each_sg(scsicmd, sg, nseg, i) {
 		int count = sg_dma_len(sg);
 		u64 addr = sg_dma_address(sg);
@@ -3964,7 +3960,6 @@ static long aac_build_sgraw2(struct scsi_cmnd *scsicmd,
 		printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
 		       byte_count, scsicmd->underflow);
 	}
-	}
 
 	return byte_count;
 }