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| author | Paul Menzel <pmenzel@molgen.mpg.de> | 2020-06-25 09:11:56 +0200 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2020-07-26 21:26:04 +0000 |
| commit | 6d412d738c48c5e65da4e2054109726ba3f558d7 (patch) | |
| tree | 9eb64076b24ad4e8945a7279ea7f041347c2c8ec | |
| parent | 253b7d22fe9fea679ccbafd4d55142088e203127 (diff) | |
| download | coreboot-6d412d738c48c5e65da4e2054109726ba3f558d7.tar.xz | |
drivers/mrc_cache: Avoid unused variable assignment
Fix the scan-build warning below:
CC romstage/drivers/mrc_cache/mrc_cache.o
src/drivers/mrc_cache/mrc_cache.c:450:26: warning: Value stored to 'flash' during its initialization is never read
const struct spi_flash *flash = boot_device_spi_flash();
^~~~~ ~~~~~~~~~~~~~~~~~~~~~~~
1 warning generated.
The function can return early before the value is read. Fix this, by
getting rid of the variable, as the value is only read once.
Change-Id: I3c94b123f4994eed9d7568b63971fd5b1d94bc09
Found-by: scan-build (clang-tools-9 1:9.0.1-12)
Signed-off-by: Paul Menzel <pmenzel@molgen.mpg.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42798
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
| -rw-r--r-- | src/drivers/mrc_cache/mrc_cache.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/src/drivers/mrc_cache/mrc_cache.c b/src/drivers/mrc_cache/mrc_cache.c index 3a005db357..d567a20f11 100644 --- a/src/drivers/mrc_cache/mrc_cache.c +++ b/src/drivers/mrc_cache/mrc_cache.c @@ -447,15 +447,13 @@ static int nvm_is_write_protected(void) /* Apply protection to a range of flash */ static int nvm_protect(const struct region *r) { - const struct spi_flash *flash = boot_device_spi_flash(); - if (!CONFIG(MRC_SETTINGS_PROTECT)) return 0; if (!CONFIG(BOOT_DEVICE_SPI_FLASH)) return 0; - return spi_flash_ctrlr_protect_region(flash, r, WRITE_PROTECT); + return spi_flash_ctrlr_protect_region(boot_device_spi_flash(), r, WRITE_PROTECT); } /* Protect mrc region with a Protected Range Register */ |