On Fri, Sep 18, 2020 at 11:45:34AM +0300, Dan Carpenter wrote: > Hi Xin, > > url: > https://github.com/0day-ci/linux/commits/Xin-Ji/Add-initial-support-for-slimport-anx7625/20200917-163238 > base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git > 5925fa68fe8244651b3f78a88c4af99190a88f0d > config: mips-randconfig-m031-20200917 (attached as .config) > compiler: mips-linux-gcc (GCC) 9.3.0 > > If you fix the issue, kindly add following tag as appropriate > Reported-by: kernel test robot <l...@intel.com> > Reported-by: Dan Carpenter <dan.carpen...@oracle.com> Hi Dan, OK, I'll fix it right now. Thanks, Xin > > smatch warnings: > drivers/gpu/drm/bridge/analogix/anx7625.c:1289 anx7625_get_edid() warn: > possible memory leak of 'edid' > > # > https://github.com/0day-ci/linux/commit/667ee517c70d2bedafe5bfa0dc5f13fc60d5133d > git remote add linux-review https://github.com/0day-ci/linux > git fetch --no-tags linux-review > Xin-Ji/Add-initial-support-for-slimport-anx7625/20200917-163238 > git checkout 667ee517c70d2bedafe5bfa0dc5f13fc60d5133d > vim +/edid +1289 drivers/gpu/drm/bridge/analogix/anx7625.c > > 667ee517c70d2be Xin Ji 2020-09-17 1264 static struct edid > *anx7625_get_edid(struct anx7625_data *ctx) > 667ee517c70d2be Xin Ji 2020-09-17 1265 { > 667ee517c70d2be Xin Ji 2020-09-17 1266 struct device *dev = > &ctx->client->dev; > 667ee517c70d2be Xin Ji 2020-09-17 1267 struct s_edid_data *p_edid = > &ctx->slimport_edid_p; > 667ee517c70d2be Xin Ji 2020-09-17 1268 int edid_num; > 667ee517c70d2be Xin Ji 2020-09-17 1269 u8 *edid; > 667ee517c70d2be Xin Ji 2020-09-17 1270 > 667ee517c70d2be Xin Ji 2020-09-17 1271 edid = kmalloc(FOUR_BLOCK_SIZE, > GFP_KERNEL); > 667ee517c70d2be Xin Ji 2020-09-17 1272 if (!edid) { > 667ee517c70d2be Xin Ji 2020-09-17 1273 DRM_DEV_ERROR(dev, > "Fail to allocate buffer\n"); > 667ee517c70d2be Xin Ji 2020-09-17 1274 return NULL; > 667ee517c70d2be Xin Ji 2020-09-17 1275 } > 667ee517c70d2be Xin Ji 2020-09-17 1276 > 667ee517c70d2be Xin Ji 2020-09-17 1277 if > (ctx->slimport_edid_p.edid_block_num > 0) { > 667ee517c70d2be Xin Ji 2020-09-17 1278 memcpy(edid, > ctx->slimport_edid_p.edid_raw_data, > 667ee517c70d2be Xin Ji 2020-09-17 1279 FOUR_BLOCK_SIZE); > 667ee517c70d2be Xin Ji 2020-09-17 1280 return (struct edid > *)edid; > 667ee517c70d2be Xin Ji 2020-09-17 1281 } > 667ee517c70d2be Xin Ji 2020-09-17 1282 > 667ee517c70d2be Xin Ji 2020-09-17 1283 > anx7625_low_power_mode_check(ctx, 1); > 667ee517c70d2be Xin Ji 2020-09-17 1284 edid_num = sp_tx_edid_read(ctx, > p_edid->edid_raw_data); > 667ee517c70d2be Xin Ji 2020-09-17 1285 > anx7625_low_power_mode_check(ctx, 0); > 667ee517c70d2be Xin Ji 2020-09-17 1286 > 667ee517c70d2be Xin Ji 2020-09-17 1287 if (edid_num < 1) { > 667ee517c70d2be Xin Ji 2020-09-17 1288 DRM_DEV_ERROR(dev, > "Fail to read EDID: %d\n", edid_num); > 667ee517c70d2be Xin Ji 2020-09-17 @1289 return NULL; > > kfree(edid); before returning. > > 667ee517c70d2be Xin Ji 2020-09-17 1290 } > 667ee517c70d2be Xin Ji 2020-09-17 1291 > 667ee517c70d2be Xin Ji 2020-09-17 1292 p_edid->edid_block_num = > edid_num; > 667ee517c70d2be Xin Ji 2020-09-17 1293 > 667ee517c70d2be Xin Ji 2020-09-17 1294 memcpy(edid, > ctx->slimport_edid_p.edid_raw_data, FOUR_BLOCK_SIZE); > 667ee517c70d2be Xin Ji 2020-09-17 1295 return (struct edid *)edid; > 667ee517c70d2be Xin Ji 2020-09-17 1296 } > > --- > 0-DAY CI Kernel Test Service, Intel Corporation > https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org
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