[PATCH] lib: Use kmalloc_track_caller to get accurate traces for kvasprintf

[PATCH] lib: Use kmalloc_track_caller to get accurate traces for kvasprintf

[Ezequiel Garcia]

Previously kvasprintf allocation was being done through kmalloc,
thus producing an unaccurate trace report.

This is a common problem: in order to get accurate callsite tracing,
a lib/utils function shouldn't allocate kmalloc but instead
use kmalloc_track_caller.

Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ezequiel Garcia <elezegarcia@gmail.com>
---
 lib/kasprintf.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/lib/kasprintf.c b/lib/kasprintf.c
index ae0de80..32f1215 100644
--- a/lib/kasprintf.c
+++ b/lib/kasprintf.c
@@ -21,7 +21,7 @@ char *kvasprintf(gfp_t gfp, const char *fmt, va_list ap)
 	len = vsnprintf(NULL, 0, fmt, aq);
 	va_end(aq);
 
-	p = kmalloc(len+1, gfp);
+	p = kmalloc_track_caller(len+1, gfp);
 	if (!p)
 		return NULL;
 
-- 
1.7.8.6

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