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| author | Takashi Iwai <tiwai@suse.de> | 2015-09-09 16:52:09 +0200 |
|---|---|---|
| committer | Jani Nikula <jani.nikula@intel.com> | 2015-09-10 10:32:48 +0300 |
| commit | 982b0b2dd590c00f089fc6fe915bd0cb302a7f5c (patch) | |
| tree | d29dd8b0f7698cd9dddea73b261dd14aba81d61d /drivers | |
| parent | acd29f7b22262d9e848393b9b6ae13eb42d22514 (diff) | |
| download | linux-982b0b2dd590c00f089fc6fe915bd0cb302a7f5c.tar.gz linux-982b0b2dd590c00f089fc6fe915bd0cb302a7f5c.tar.bz2 linux-982b0b2dd590c00f089fc6fe915bd0cb302a7f5c.zip | |
drm/i915: Fix CSR MMIO address check
Fix a wrong logical AND (&&) used for the range check of CSR MMIO.
Spotted nicely by gcc -Wlogical-op flag:
drivers/gpu/drm/i915/intel_csr.c: In function ‘finish_csr_load’:
drivers/gpu/drm/i915/intel_csr.c:353:41: warning: logical ‘and’ of mutually exclusive tests is always false [-Wlogical-op]
Fixes: eb805623d8b1 ('drm/i915/skl: Add support to load SKL CSR firmware.')
Cc: <stable@vger.kernel.org> # v4.2
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Animesh Manna <animesh.manna@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_csr.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/intel_csr.c b/drivers/gpu/drm/i915/intel_csr.c index ba1ae031e6fd..d0f1b8d833cd 100644 --- a/drivers/gpu/drm/i915/intel_csr.c +++ b/drivers/gpu/drm/i915/intel_csr.c @@ -350,7 +350,7 @@ static void finish_csr_load(const struct firmware *fw, void *context) } csr->mmio_count = dmc_header->mmio_count; for (i = 0; i < dmc_header->mmio_count; i++) { - if (dmc_header->mmioaddr[i] < CSR_MMIO_START_RANGE && + if (dmc_header->mmioaddr[i] < CSR_MMIO_START_RANGE || dmc_header->mmioaddr[i] > CSR_MMIO_END_RANGE) { DRM_ERROR(" Firmware has wrong mmio address 0x%x\n", dmc_header->mmioaddr[i]); |