diff options
Diffstat (limited to 'lib/chromeos/os_storage.c')
| -rw-r--r-- | lib/chromeos/os_storage.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/lib/chromeos/os_storage.c b/lib/chromeos/os_storage.c index 1bbd1cf8ac8..c410cd05949 100644 --- a/lib/chromeos/os_storage.c +++ b/lib/chromeos/os_storage.c @@ -203,7 +203,13 @@ int initialize_mmc_device(int dev) int is_mmc_storage_present(int mmc_device_number) { - return find_mmc_device(mmc_device_number) != NULL; + /* + * mmc_init tests the SD card's version and tries its operating + * condition. It should be the minimally required code for probing + * an SD card. + */ + struct mmc *mmc = find_mmc_device(mmc_device_number); + return mmc != NULL && mmc_init(mmc) == 0; } int is_usb_storage_present(void) |