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authorShawn Lin <shawn.lin@rock-chips.com>2016-11-02 15:26:57 +0800
committerUlf Hansson <ulf.hansson@linaro.org>2016-12-05 10:31:13 +0100
commitf28ef5617254a946c1a8576dc3f243347b143794 (patch)
tree09c7191a88336c429ff2aa63954bfcac113f5cd8 /drivers/mmc
parent8508cb9868015cad4f10d818f32f4030c75e88e0 (diff)
downloadlinux-f28ef5617254a946c1a8576dc3f243347b143794.tar.bz2
mmc: mmc_test: remove BUG_ONs and deploy error handling
It is unnecessary to panic the kernel when testing mmc. Instead, cast a warning for folkz to debug and return the error code to the caller to indicate the failure of this test should be enough. Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc')
-rw-r--r--drivers/mmc/card/mmc_test.c12
1 files changed, 8 insertions, 4 deletions
diff --git a/drivers/mmc/card/mmc_test.c b/drivers/mmc/card/mmc_test.c
index 5ba6d77b9723..ec1d1c46eb90 100644
--- a/drivers/mmc/card/mmc_test.c
+++ b/drivers/mmc/card/mmc_test.c
@@ -214,7 +214,8 @@ static void mmc_test_prepare_mrq(struct mmc_test_card *test,
struct mmc_request *mrq, struct scatterlist *sg, unsigned sg_len,
unsigned dev_addr, unsigned blocks, unsigned blksz, int write)
{
- BUG_ON(!mrq || !mrq->cmd || !mrq->data || !mrq->stop);
+ if (WARN_ON(!mrq || !mrq->cmd || !mrq->data || !mrq->stop))
+ return;
if (blocks > 1) {
mrq->cmd->opcode = write ?
@@ -694,7 +695,8 @@ static int mmc_test_cleanup(struct mmc_test_card *test)
static void mmc_test_prepare_broken_mrq(struct mmc_test_card *test,
struct mmc_request *mrq, int write)
{
- BUG_ON(!mrq || !mrq->cmd || !mrq->data);
+ if (WARN_ON(!mrq || !mrq->cmd || !mrq->data))
+ return;
if (mrq->data->blocks > 1) {
mrq->cmd->opcode = write ?
@@ -714,7 +716,8 @@ static int mmc_test_check_result(struct mmc_test_card *test,
{
int ret;
- BUG_ON(!mrq || !mrq->cmd || !mrq->data);
+ if (WARN_ON(!mrq || !mrq->cmd || !mrq->data))
+ return -EINVAL;
ret = 0;
@@ -768,7 +771,8 @@ static int mmc_test_check_broken_result(struct mmc_test_card *test,
{
int ret;
- BUG_ON(!mrq || !mrq->cmd || !mrq->data);
+ if (WARN_ON(!mrq || !mrq->cmd || !mrq->data))
+ return -EINVAL;
ret = 0;