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[next] NFSv4.2: fix error return on memory allocation failure

Message ID 20201216122513.15004-1-colin.king@canonical.com (mailing list archive)
State New, archived
Headers show
Series [next] NFSv4.2: fix error return on memory allocation failure | expand

Commit Message

Colin King Dec. 16, 2020, 12:25 p.m. UTC 
From: Colin Ian King <colin.king@canonical.com>

Currently when an alloc_page fails the error return is not set in
variable err and a garbage initialized value is returned. Fix this
by setting err to -ENOMEM before taking the error return path.

Addresses-Coverity: ("Uninitialized scalar variable")
Fixes: a1f26739ccdc ("NFSv4.2: improve page handling for GETXATTR")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
---
 fs/nfs/nfs42proc.c | 1 +
 1 file changed, 1 insertion(+)
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Patch

diff --git a/fs/nfs/nfs42proc.c b/fs/nfs/nfs42proc.c
index b9836e2ce4a2..f3fd935620fc 100644
--- a/fs/nfs/nfs42proc.c
+++ b/fs/nfs/nfs42proc.c
@@ -1301,6 +1301,7 @@  ssize_t nfs42_proc_getxattr(struct inode *inode, const char *name,
 		pages[i] = alloc_page(GFP_KERNEL);
 		if (!pages[i]) {
 			np = i + 1;
+			err = -ENOMEM;
 			goto out;
 		}
 	}