Messages in this thread Patch in this message | | | From | Lee Jones <> | Subject | [PATCH 09/15] mmc: host: rtsx_pci_sdmmc: Remove set but unused variable 'err' | Date | Wed, 1 Jul 2020 13:46:56 +0100 |
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Seeing as sd_wait_data_idle() returns void and only a very specific read value is checked, there doesn't seem to be a good reason to check the return value of rtsx_pci_read_register(). So remove the assignment and definition of 'err'.
Squashes the following W=1 kernel build warning:
drivers/mmc/host/rtsx_pci_sdmmc.c: In function ‘sd_wait_data_idle’: drivers/mmc/host/rtsx_pci_sdmmc.c:678:6: warning: variable ‘err’ set but not used [-Wunused-but-set-variable] 678 | int err, i; | ^~~
Cc: Wei WANG <wei_wang@realsil.com.cn> Signed-off-by: Lee Jones <lee.jones@linaro.org> --- drivers/mmc/host/rtsx_pci_sdmmc.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/mmc/host/rtsx_pci_sdmmc.c b/drivers/mmc/host/rtsx_pci_sdmmc.c index 5a71f6678fd3a..dc0dbd64a2a78 100644 --- a/drivers/mmc/host/rtsx_pci_sdmmc.c +++ b/drivers/mmc/host/rtsx_pci_sdmmc.c @@ -675,11 +675,11 @@ static u8 sd_search_final_phase(struct realtek_pci_sdmmc *host, u32 phase_map) static void sd_wait_data_idle(struct realtek_pci_sdmmc *host) { - int err, i; + int i; u8 val = 0; for (i = 0; i < 100; i++) { - err = rtsx_pci_read_register(host->pcr, SD_DATA_STATE, &val); + rtsx_pci_read_register(host->pcr, SD_DATA_STATE, &val); if (val & SD_DATA_IDLE) return; -- 2.25.1
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