| commit | e9b86841b372de01ae865080118e29159d8b7c39 | |
| author | Linus Walleij <linus.walleij@stericsson.com> | |
| Tue, 4 Jan 2011 23:44:32 +0000 (5 00:44 +0100) | ||
| committer | Chris Ball <cjb@laptop.org> | |
| Sun, 9 Jan 2011 04:52:33 +0000 (8 23:52 -0500) | ||
| tree | c950489d3f41063fc0acc4b259ce4d4bae676d12 | treesnapshot (tar.gz zip) |
| parent | 2bd6a935555b06622fa7f47a9c411b8a7812e4dc | commitdiff |
mmc: fix division by zero in MMC core
The card is not always clocked and the clock frequency zero is perfectly
legal, thus this code in mmc_set_data_timeout() may cause a division by
zero. It will be triggered more often if you're using software clock
gating but can be triggered under other conditions too.
Reported-by: Pierre Tardy <tardyp@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Reviewed-by: Chris Ball <cjb@laptop.org>
Cc: <stable@kernel.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
The card is not always clocked and the clock frequency zero is perfectly
legal, thus this code in mmc_set_data_timeout() may cause a division by
zero. It will be triggered more often if you're using software clock
gating but can be triggered under other conditions too.
Reported-by: Pierre Tardy <tardyp@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Reviewed-by: Chris Ball <cjb@laptop.org>
Cc: <stable@kernel.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
| drivers/mmc/core/core.c | diffblobblamehistory |