Fix mtd valgrind warning

strlen seems to operate in 32-bit chunks, but libmtd sometimes allocates
strings without that much padding. This patch adds something extra to
a string allocation so that the mtd ioengine is clean with respect
to valgrind memory access checks.

Signed-off-by: Dan Ehrenberg <dehrenberg@chromium.org>
Signed-off-by: Jens Axboe <axboe@fb.com>

diff --git a/lib/libmtd.c b/lib/libmtd.c
index e1b2be19b5c68ceb9d60483e895d1a90e4ba88d5..5c9eac2778c69a5b4bead766f70d74bdc0939705 100644 (file)
--- a/lib/libmtd.c
+++ b/lib/libmtd.c
@@ -55,7 +55,7 @@ static char *mkpath(const char *path, const char *name)
        size_t len1 = strlen(path);
        size_t len2 = strlen(name);
 
        size_t len1 = strlen(path);
        size_t len2 = strlen(name);
 

-       n = xmalloc(len1 + len2 + 2);
+       n = xmalloc(len1 + len2 + 6);

 
        memcpy(n, path, len1);
        if (n[len1 - 1] != '/')
 
        memcpy(n, path, len1);
        if (n[len1 - 1] != '/')