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From: Rakesh Pandit <rakesh@tuxera.com>
To: <linux-btrfs@vger.kernel.org>
Subject: [PATCH] Btrfs-progs: fi-disk_usage: free memory if realloc fails
Date: Sat, 19 Apr 2014 14:12:03 +0300	[thread overview]
Message-ID: <20140419111201.GA4762@hercules.tuxera.com> (raw)

Lets not assign *info_ptr to 0 before calling free on it and lose
track of already allocated memory if realloc fails in
add_info_to_list. Lets call free first.

Signed-off-by: Rakesh Pandit <rakesh@tuxera.com>
---
 cmds-fi-disk_usage.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/cmds-fi-disk_usage.c b/cmds-fi-disk_usage.c
index 2bd591d..cd71c8d 100644
--- a/cmds-fi-disk_usage.c
+++ b/cmds-fi-disk_usage.c
@@ -104,6 +104,7 @@ static int add_info_to_list(struct chunk_info **info_ptr,
 			struct chunk_info *res = realloc(*info_ptr, size);
 
 			if (!res) {
+				free(*info_ptr);
 				fprintf(stderr, "ERROR: not enough memory\n");
 				return -1;
 			}
@@ -224,7 +225,6 @@ static int load_chunk_info(int fd,
 
 			if (add_info_to_list(info_ptr, info_count, item)) {
 				*info_ptr = 0;
-				free(*info_ptr);
 				return -100;
 			}
 
-- 
1.8.5.3


                 reply	other threads:[~2014-04-19 11:12 UTC|newest]

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