Adrian Hunter 7d8692671e mmc: sdhci: Do not lock spinlock around mmc_gpio_get_ro() ... commit ab069ce125 upstream. sdhci_check_ro() can call mmc_gpio_get_ro() while holding the sdhci host->lock spinlock. That would be a problem if the GPIO access done by mmc_gpio_get_ro() needed to sleep. However, host->lock is not needed anyway. The mmc core ensures that host operations do not race with each other, and asynchronous callbacks like the interrupt handler, software timeouts, completion work etc, cannot affect sdhci_check_ro(). So remove the locking. Fixes: 6d5cd068ee ("mmc: sdhci: use WP GPIO in sdhci_check_ro()") Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20240614080051.4005-3-adrian.hunter@intel.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2024-07-05 09:14:45 +02:00
..
core	mmc: core: Add mmc_gpiod_set_cd_config() function	2024-06-16 13:39:57 +02:00
host	mmc: sdhci: Do not lock spinlock around mmc_gpio_get_ro()	2024-07-05 09:14:45 +02:00
Kconfig	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
Makefile	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00