Message ID | 5f910c33-c811-2197-0adb-c55f7722c5a7@users.sourceforge.net (mailing list archive) |
---|---|
State | Accepted |
Headers | show |
On Sat, 2017-01-21 at 15:24:58 UTC, SF Markus Elfring wrote: > From: Markus Elfring <elfring@users.sourceforge.net> > Date: Sat, 21 Jan 2017 16:10:50 +0100 > > * Return directly after a call of the function "__copy_from_user" > failed here. > > This issue was detected by using the Coccinelle software. > > * Delete the jump label "out2" which became unnecessary with > this refactoring. > > Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Applied to powerpc next, thanks. https://git.kernel.org/powerpc/c/a967f161abc7c4a6936ceb15737f75 cheers
diff --git a/arch/powerpc/mm/subpage-prot.c b/arch/powerpc/mm/subpage-prot.c index d5543514c1df..40309edd7cb7 100644 --- a/arch/powerpc/mm/subpage-prot.c +++ b/arch/powerpc/mm/subpage-prot.c @@ -248,9 +248,8 @@ long sys_subpage_prot(unsigned long addr, unsigned long len, u32 __user *map) nw = (next - addr) >> PAGE_SHIFT; up_write(&mm->mmap_sem); - err = -EFAULT; if (__copy_from_user(spp, map, nw * sizeof(u32))) - goto out2; + return -EFAULT; map += nw; down_write(&mm->mmap_sem); @@ -262,6 +261,5 @@ long sys_subpage_prot(unsigned long addr, unsigned long len, u32 __user *map) err = 0; out: up_write(&mm->mmap_sem); - out2: return err; }