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[PATCH] Fix acl Oops

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From: Andreas Gruenbacher <agruen@suse.de>

ext[23]_get_acl will return an error when reading the attribute fails or
out-of-memory occurs.  Catch this case.

Signed-off-by: Andreas Gruenbacher <agruen@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
akpm@osdl.org 2005-04-16 15:24:00 -07:00 committed by Linus Torvalds
parent 81ddef77bb
commit e493073d8d
2 changed files with 4 additions and 0 deletions
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2
fs/ext2/acl.c
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@ -283,6 +283,8 @@ ext2_check_acl(struct inode *inode, int mask)
{ {
struct posix_acl *acl = ext2_get_acl(inode, ACL_TYPE_ACCESS); struct posix_acl *acl = ext2_get_acl(inode, ACL_TYPE_ACCESS);
if (IS_ERR(acl))
return PTR_ERR(acl);
if (acl) { if (acl) {
int error = posix_acl_permission(inode, acl, mask); int error = posix_acl_permission(inode, acl, mask);
posix_acl_release(acl); posix_acl_release(acl);

2
fs/ext3/acl.c
View File

@ -286,6 +286,8 @@ ext3_check_acl(struct inode *inode, int mask)
{ {
struct posix_acl *acl = ext3_get_acl(inode, ACL_TYPE_ACCESS); struct posix_acl *acl = ext3_get_acl(inode, ACL_TYPE_ACCESS);
if (IS_ERR(acl))
return PTR_ERR(acl);
if (acl) { if (acl) {
int error = posix_acl_permission(inode, acl, mask); int error = posix_acl_permission(inode, acl, mask);
posix_acl_release(acl); posix_acl_release(acl);