From: KOBAYASHI Yoshitake Date: Sat, 6 Jul 2013 22:35:45 +0000 (+0900) Subject: mmc: block: fix a bug of error handling in MMC driver X-Git-Tag: v3.12-rc1~69^2~42 X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c8760069627ad3b0dbbea170f0c4c58b16e18d3d;p=pandora-kernel.git mmc: block: fix a bug of error handling in MMC driver Current MMC driver doesn't handle generic error (bit19 of device status) in write sequence. As a result, write data gets lost when generic error occurs. For example, a generic error when updating a filesystem management information causes a loss of write data and corrupts the filesystem. In the worst case, the system will never boot. This patch includes the following functionality: 1. To enable error checking for the response of CMD12 and CMD13 in write command sequence 2. To retry write sequence when a generic error occurs Messages are added for v2 to show what occurs. Signed-off-by: KOBAYASHI Yoshitake Signed-off-by: Chris Ball --- Reading git-diff-tree failed