From: John L. Hammond <john.hammond@intel.com>
Date: Mon, 22 Jul 2013 16:06:27 +0000 (+0800)
Subject: staging/lustre/llite: check alloc in ll_file_data_get, ll_dir_ioctl
X-Git-Tag: firefly_0821_release~176^2~5471^2~780
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=73863d83b8066b3f7973fd5671162c846b7aea8f;p=firefly-linux-kernel-4.4.55.git

staging/lustre/llite: check alloc in ll_file_data_get, ll_dir_ioctl

In ll_file_data_get() and ll_dir_ioctl() return error on failed
allocations.

Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-2753
Lustre-change: http://review.whamcloud.com/5845
Signed-off-by: John L. Hammond <john.hammond@intel.com>
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: Dmitry Eremin <dmitry.eremin@intel.com>
Reviewed-by: Sebastien Buisson <sebastien.buisson@bull.net>
Signed-off-by: Peng Tao <tao.peng@emc.com>
Signed-off-by: Andreas Dilger <andreas.dilger@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/staging/lustre/lustre/llite/dir.c b/drivers/staging/lustre/lustre/llite/dir.c
index 1084999be959..bfc914e4be08 100644
--- a/drivers/staging/lustre/lustre/llite/dir.c
+++ b/drivers/staging/lustre/lustre/llite/dir.c
@@ -1561,6 +1561,8 @@ out_rmdir:
 			RETURN(rc);
 
 		OBD_ALLOC_LARGE(lmm, lmmsize);
+		if (lmm == NULL)
+			RETURN(-ENOMEM);
 		if (copy_from_user(lmm, lum, lmmsize))
 			GOTO(free_lmm, rc = -EFAULT);
 
diff --git a/drivers/staging/lustre/lustre/llite/file.c b/drivers/staging/lustre/lustre/llite/file.c
index efe66d996f5e..927b3a03e654 100644
--- a/drivers/staging/lustre/lustre/llite/file.c
+++ b/drivers/staging/lustre/lustre/llite/file.c
@@ -55,6 +55,8 @@ struct ll_file_data *ll_file_data_get(void)
 	struct ll_file_data *fd;
 
 	OBD_SLAB_ALLOC_PTR_GFP(fd, ll_file_data_slab, __GFP_IO);
+	if (fd == NULL)
+		return NULL;
 	fd->fd_write_failed = false;
 	return fd;
 }