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| author | Linus Walleij <linus.walleij@linaro.org> | 2023-06-16 22:42:19 +0200 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2023-06-19 13:14:26 +0200 |
| commit | 2673493fdfe78a1a8df1f802755cc2448ca98df6 (patch) | |
| tree | b96e9946cc11bb26ffbe0146fee36f9d98cf4ee0 /drivers/mmc | |
| parent | mmc: Merge branch fixes into next (diff) | |
| download | linux-2673493fdfe78a1a8df1f802755cc2448ca98df6.tar.xz linux-2673493fdfe78a1a8df1f802755cc2448ca98df6.zip | |
mmc: mmci: Clear busy_status when starting command
If we are starting a command which can generate a busy
response, then clear the variable host->busy_status
if the variant is using a ->busy_complete callback.
We are lucky that the member is zero by default and
hopefully always gets cleared in the ->busy_complete
callback even on errors, but it's just fragile so
make sure it is always initialized to zero.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20230405-pl180-busydetect-fix-v7-1-69a7164f2a61@linaro.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/host/mmci.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c index f724bd0d2a61..267f88d9daec 100644 --- a/drivers/mmc/host/mmci.c +++ b/drivers/mmc/host/mmci.c @@ -1238,6 +1238,7 @@ mmci_start_command(struct mmci_host *host, struct mmc_command *cmd, u32 c) c |= host->variant->cmdreg_srsp; } + host->busy_status = 0; if (host->variant->busy_timeout && cmd->flags & MMC_RSP_BUSY) { if (!cmd->busy_timeout) cmd->busy_timeout = 10 * MSEC_PER_SEC; |