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From: Suraj Kandpal <suraj.kandpal@intel.com>
To: intel-xe@lists.freedesktop.org, intel-gfx@lists.freedesktop.org
Cc: uma.shankar@intel.com, chaitanya.kumar.borah@intel.com,
	Suraj Kandpal <suraj.kandpal@intel.com>
Subject: [PATCH] drm/i915/dmc: Add dmc null check
Date: Wed,  9 Oct 2024 12:24:34 +0530	[thread overview]
Message-ID: <20241009065434.1799459-2-suraj.kandpal@intel.com> (raw)

Add dmc null check before dereferncing to get the major and minor
version.

Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
---
 drivers/gpu/drm/i915/display/intel_dmc.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_dmc.c b/drivers/gpu/drm/i915/display/intel_dmc.c
index 48bbbf8f312c..8c193de0e253 100644
--- a/drivers/gpu/drm/i915/display/intel_dmc.c
+++ b/drivers/gpu/drm/i915/display/intel_dmc.c
@@ -1263,8 +1263,9 @@ static int intel_dmc_debugfs_status_show(struct seq_file *m, void *unused)
 	if (!intel_dmc_has_payload(display))
 		goto out;
 
-	seq_printf(m, "version: %d.%d\n", DMC_VERSION_MAJOR(dmc->version),
-		   DMC_VERSION_MINOR(dmc->version));
+	if (dmc)
+		seq_printf(m, "version: %d.%d\n", DMC_VERSION_MAJOR(dmc->version),
+			   DMC_VERSION_MINOR(dmc->version));
 
 	if (DISPLAY_VER(display) >= 12) {
 		i915_reg_t dc3co_reg;
-- 
2.43.2


             reply	other threads:[~2024-10-09  7:00 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-10-09  6:54 Suraj Kandpal [this message]
2024-10-09  9:20 ` ✓ CI.Patch_applied: success for drm/i915/dmc: Add dmc null check Patchwork
2024-10-09  9:21 ` ✓ CI.checkpatch: " Patchwork
2024-10-09  9:22 ` ✓ CI.KUnit: " Patchwork
2024-10-09  9:31 ` [PATCH] " Jani Nikula
2024-10-09 10:47   ` Kandpal, Suraj
2024-10-09  9:33 ` ✓ CI.Build: success for " Patchwork
2024-10-09  9:36 ` ✓ CI.Hooks: " Patchwork
2024-10-09  9:37 ` ✗ CI.checksparse: warning " Patchwork
2024-10-09  9:55 ` ✓ CI.BAT: success " Patchwork
2024-10-09 15:18 ` ✗ CI.FULL: failure " Patchwork

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