tjh.dev / kernel
Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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drm/bridge: tda998x: Return NULL instead of 0 in tda998x_edid_read()

tda998x_edid_read() returns a const struct drm_edid pointer, but when
tda998x_edid_delay_wait() fails (process killed while waiting for the
HPD timeout), the integer literal 0 is returned instead of NULL,
triggering a sparse warning: "Using plain integer as NULL pointer"

Replace 0 with NULL to fix the sparse warning.

Fixes: c76a8be4feec ("drm/bridge: tda998x: Add support for DRM_BRIDGE_ATTACH_NO_CONNECTOR")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202604172257.Imo6GOH9-lkp@intel.com/
Signed-off-by: Kory Maincent (TI) <kory.maincent@bootlin.com>
Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Link: https://patch.msgid.link/20260417155446.1068893-1-kory.maincent@bootlin.com
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>

authored by

Kory Maincent (TI) and committed by
Luca Ceresoli b5d0ad61 2a46a935

+1 -1
+1 -1
drivers/gpu/drm/bridge/tda998x_drv.c
··· 1293 1293 * can't handle signals gracefully. 1294 1294 */ 1295 1295 if (tda998x_edid_delay_wait(priv)) 1296 - return 0; 1296 + return NULL; 1297 1297 1298 1298 if (priv->rev == TDA19988) 1299 1299 reg_clear(priv, REG_TX4, TX4_PD_RAM);