From: Julia Lawall <ju...@diku.dk> If the NULL test on mrq is needed, then the derefernce should be after the NULL test.
A simplified version of the semantic match that detects this problem is as follows (http://coccinelle.lip6.fr/): // <smpl> @match exists@ expression x, E; identifier fld; @@ * x->fld ... when != \(x = E\|&x\) * x == NULL // </smpl> Signed-off-by: Julia Lawall <ju...@diku.dk> --- drivers/mmc/host/s3cmci.c | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-) diff --git a/drivers/mmc/host/s3cmci.c b/drivers/mmc/host/s3cmci.c index 99b74a3..5be6962 100644 --- a/drivers/mmc/host/s3cmci.c +++ b/drivers/mmc/host/s3cmci.c @@ -820,7 +820,7 @@ fail_request: static void finalize_request(struct s3cmci_host *host) { struct mmc_request *mrq = host->mrq; - struct mmc_command *cmd = host->cmd_is_stop ? mrq->stop : mrq->cmd; + struct mmc_command *cmd; int debug_as_failure = 0; if (host->complete_what != COMPLETION_FINALIZE) @@ -828,6 +828,7 @@ static void finalize_request(struct s3cmci_host *host) if (!mrq) return; + cmd = host->cmd_is_stop ? mrq->stop : mrq->cmd; if (cmd->data && (cmd->error == 0) && (cmd->data->error == 0)) { -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
