Commit f474c8c8 authored by Mika Penttilä's avatar Mika Penttilä Committed by Russell King

ARM: 8544/1: set_memory_xx fixes

Allow zero size updates. This makes set_memory_xx() consistent with x86, s390 and arm64 and makes apply_to_page_range() not to BUG() when loading modules.

Signed-off-by: Mika Penttilä mika.penttila@nextfour.com
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent c7edd7f9
...@@ -49,6 +49,9 @@ static int change_memory_common(unsigned long addr, int numpages, ...@@ -49,6 +49,9 @@ static int change_memory_common(unsigned long addr, int numpages,
WARN_ON_ONCE(1); WARN_ON_ONCE(1);
} }
if (!numpages)
return 0;
if (start < MODULES_VADDR || start >= MODULES_END) if (start < MODULES_VADDR || start >= MODULES_END)
return -EINVAL; return -EINVAL;
......
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