From dd0ee9ea857c4e4d927ae41791c1626fd57c301d Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Tue, 12 Jun 2018 00:04:59 -0600 Subject: [PATCH] fdtgrep: Separate out checking of two allocations The current code might succeed on the first allocation and fail on the second. Separate the checks to avoid this problem. Of course, free() will never fail and the chances that (when allocating two small areas) one will succeed and one will fail are just as remote. But this keeps coverity happy. Reported-by: Coverity (CID: 131226) Signed-off-by: Simon Glass --- tools/fdtgrep.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/tools/fdtgrep.c b/tools/fdtgrep.c index 1f64fc3..8f44f59 100644 --- a/tools/fdtgrep.c +++ b/tools/fdtgrep.c @@ -133,11 +133,11 @@ static int value_add(struct display_info *disp, struct value_node **headp, } str = strdup(str); + if (!str) + goto err_mem; node = malloc(sizeof(*node)); - if (!str || !node) { - fprintf(stderr, "Out of memory\n"); - return -1; - } + if (!node) + goto err_mem; node->next = *headp; node->type = type; node->include = include; @@ -145,6 +145,9 @@ static int value_add(struct display_info *disp, struct value_node **headp, *headp = node; return 0; +err_mem: + fprintf(stderr, "Out of memory\n"); + return -1; } static bool util_is_printable_string(const void *data, int len)