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authorJ. Bruce Fields <bfields@snoopy.citi.umich.edu>2007-02-16 01:28:30 -0800
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-02-16 08:14:01 -0800
commita4db5fe5dfb3a5b5b550f1acd95ef3de01a3f063 (patch)
tree38d4ebad2877789d481185c973dbba449cbaee61
parent28e05dd8457c7a7fa1c3faac169a95e0ce4b4a12 (diff)
[PATCH] knfsd: nfsd4: fix memory leak on kmalloc failure in savemem
The wrong pointer is being kfree'd in savemem() when defer_free returns with an error. Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--fs/nfsd/nfs4xdr.c10
1 files changed, 4 insertions, 6 deletions
diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index fbb4af96924..bb0f1860f58 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -199,24 +199,22 @@ defer_free(struct nfsd4_compoundargs *argp,
static char *savemem(struct nfsd4_compoundargs *argp, __be32 *p, int nbytes)
{
- void *new = NULL;
if (p == argp->tmp) {
- new = kmalloc(nbytes, GFP_KERNEL);
- if (!new) return NULL;
- p = new;
+ p = kmalloc(nbytes, GFP_KERNEL);
+ if (!p)
+ return NULL;
memcpy(p, argp->tmp, nbytes);
} else {
BUG_ON(p != argp->tmpp);
argp->tmpp = NULL;
}
if (defer_free(argp, kfree, p)) {
- kfree(new);
+ kfree(p);
return NULL;
} else
return (char *)p;
}
-
static __be32
nfsd4_decode_bitmap(struct nfsd4_compoundargs *argp, u32 *bmval)
{