diff options
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/host/tmio_mmc_pio.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/mmc/host/tmio_mmc_pio.c b/drivers/mmc/host/tmio_mmc_pio.c index 692e578cf4d7..e487ba4bb01a 100644 --- a/drivers/mmc/host/tmio_mmc_pio.c +++ b/drivers/mmc/host/tmio_mmc_pio.c @@ -1122,6 +1122,15 @@ int tmio_mmc_host_probe(struct tmio_mmc_host **host, } /* + * Check the sanity of mmc->f_min to prevent tmio_mmc_set_clock() from + * looping forever... + */ + if (mmc->f_min == 0) { + ret = -EINVAL; + goto host_free; + } + + /* * While using internal tmio hardware logic for card detection, we need * to ensure it stays powered for it to work. */ |