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mmc: rtsx_pci_sdmmc: Remove set but unused variable 'err'

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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>
Link: https://lore.kernel.org/r/20200701124702.908713-10-lee.jones@linaro.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Lee Jones 2020-07-01 13:46:56 +01:00 committed by Ulf Hansson
parent 306c59cbe4
commit 679209b3c1
1 changed files with 2 additions and 2 deletions
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4
drivers/mmc/host/rtsx_pci_sdmmc.c
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@ -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;