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lib: do_strncpy_from_user: Fix return error code for get_user failures

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If byte wise copy fails here, we should return EFAULT. Returning a value
other than that would cause failure of some of the user-space test cases.

CRs-Fixed: 989314
Change-Id: I38ce12d44f25dc89bdd29e8abacd8777f0a8b9a1
Signed-off-by: Imran Khan <kimran@codeaurora.org>
This commit is contained in:
Imran Khan 2016-03-31 18:01:06 +05:30 • committed by Jeevan Shriram
parent 5daf1be1ad
commit 83842ac1d6
1 changed files with 1 additions and 1 deletions
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lib/strncpy_from_user.c
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@ -44,7 +44,7 @@ static inline long do_strncpy_from_user(char *dst, const char __user *src, long
ret = __get_user(c, src + res);
if (ret)
return -ret;
return -EFAULT;
dst[res] = c;
if (!c)
return res;