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imx-drm: imx-ldb: Check 'mode' pointer first

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Fix the following static checker warning:

drivers/staging/imx-drm/imx-ldb.c:109 imx_ldb_connector_get_modes() error: potential null dereference 'mode'.  (drm_mode_create returns null)

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Fabio Estevam 2014-02-26 20:53:40 -03:00 committed by Greg Kroah-Hartman
parent 058dbde928
commit 9f9b036f0e
1 changed files with 2 additions and 0 deletions
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2
drivers/staging/imx-drm/imx-ldb.c
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@ -106,6 +106,8 @@ static int imx_ldb_connector_get_modes(struct drm_connector *connector)
struct drm_display_mode *mode;
mode = drm_mode_create(connector->dev);
if (!mode)
return -EINVAL;
drm_mode_copy(mode, &imx_ldb_ch->mode);
mode->type |= DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
drm_mode_probed_add(connector, mode);