linux-ext4 - [PATCH] e2fsck: show size requested when memory allocation fails

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Date:	Mon, 07 Jan 2013 15:45:54 -0600
From:	Eric Sandeen <sandeen@...hat.com>
To:	ext4 development <linux-ext4@...r.kernel.org>
Subject: [PATCH] e2fsck: show size requested when memory allocation fails

"e2fsck: Can't allocate dx_block info array"
is only so helpful - it'd be nice to know how much it tried to allocate.

In particular, since I think malloc(0) can return NULL,
it'd be nice to know if maybe we passed in an uninitialized (or
0-initialized) size.

Signed-off-by: Eric Sandeen <sandeen@...hat.com>
---

diff --git a/e2fsck/util.c b/e2fsck/util.c
index a808eec..6242954 100644
--- a/e2fsck/util.c
+++ b/e2fsck/util.c
@@ -121,7 +121,8 @@ void *e2fsck_allocate_memory(e2fsck_t ctx, unsigned int size,
 #endif
 	ret = malloc(size);
 	if (!ret) {
-		sprintf(buf, "Can't allocate %s\n", description);
+		sprintf(buf, "Can't allocate %u bytes for %s\n",
+			size, description);
 		fatal_error(ctx, buf);
 	}
 	memset(ret, 0, size);

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