Hello Wolfram Sang,
The patch 6186d06c519e: "mmc: parse new binding for eMMC fixed driver
type" from Oct 15, 2017, leads to the following static checker
warning:
drivers/mmc/core/mmc.c:1309 mmc_select_driver_type()
error: uninitialized symbol 'drv_type'.
drivers/mmc/core/mmc.c
1291 static void mmc_select_driver_type(struct mmc_card *card)
1292 {
1293 int card_drv_type, drive_strength, drv_type;
1294 int fixed_drv_type = card->host->fixed_drv_type;
1295
1296 card_drv_type = card->ext_csd.raw_driver_strength |
1297 mmc_driver_type_mask(0);
1298
1299 if (fixed_drv_type >= 0)
1300 drive_strength = card_drv_type & mmc_driver_type_mask(fixed_drv_type)
1301 ? fixed_drv_type : 0;
drv_type is not initialized if fixed_drv_type is greater than zero.
1302 else
1303 drive_strength = mmc_select_drive_strength(card,
1304 card->ext_csd.hs200_max_dtr,
1305 card_drv_type, &drv_type);
1306
1307 card->drive_strength = drive_strength;
1308
1309 if (drv_type)
^^^^^^^^
1310 mmc_set_driver_type(card->host, drv_type);
1311 }
regards,
dan carpenter
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