From d91062c41e1542ffb2f8590cce75fb5a2b397fdc Mon Sep 17 00:00:00 2001 From: Tom Rini Date: Tue, 26 Sep 2017 12:43:12 -0400 Subject: [PATCH] test/overlay: Fix various malloc/free leaks With the overlay tests now being built in sandbox Coverity has found a number of issues in the tests. In short, if malloc ever failed we would leak the previous mallocs, so we need to do the usual goto pattern to free each in turn. Finally, we always looked at the free()d location to see how many tests had failed for the return code. Reported-by: Coverity (CID: 167224, 167227, 167230, 167236) Signed-off-by: Tom Rini --- test/overlay/cmd_ut_overlay.c | 16 ++++++++++++---- 1 file changed, 12 insertions(+), 4 deletions(-) diff --git a/test/overlay/cmd_ut_overlay.c b/test/overlay/cmd_ut_overlay.c index 24891ee829..c730a11f51 100644 --- a/test/overlay/cmd_ut_overlay.c +++ b/test/overlay/cmd_ut_overlay.c @@ -226,6 +226,7 @@ int do_ut_overlay(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) void *fdt_overlay = &__dtb_test_fdt_overlay_begin; void *fdt_overlay_stacked = &__dtb_test_fdt_overlay_stacked_begin; void *fdt_base_copy, *fdt_overlay_copy, *fdt_overlay_stacked_copy; + int ret = -ENOMEM; uts = calloc(1, sizeof(*uts)); if (!uts) @@ -236,16 +237,16 @@ int do_ut_overlay(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) fdt_base_copy = malloc(FDT_COPY_SIZE); if (!fdt_base_copy) - return -ENOMEM; + goto err1; uts->priv = fdt_base_copy; fdt_overlay_copy = malloc(FDT_COPY_SIZE); if (!fdt_overlay_copy) - return -ENOMEM; + goto err2; fdt_overlay_stacked_copy = malloc(FDT_COPY_SIZE); if (!fdt_overlay_stacked_copy) - return -ENOMEM; + goto err3; /* * Resize the FDT to 4k so that we have room to operate on @@ -293,11 +294,18 @@ int do_ut_overlay(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) } printf("Failures: %d\n", uts->fail_count); + if (!uts->fail_count) + ret = 0; + else + ret = CMD_RET_FAILURE; free(fdt_overlay_stacked_copy); +err3: free(fdt_overlay_copy); +err2: free(fdt_base_copy); +err1: free(uts); - return uts->fail_count ? CMD_RET_FAILURE : 0; + return ret; } -- 2.39.5