diff options
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/core/block.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/drivers/mmc/core/block.c b/drivers/mmc/core/block.c index 0eebc2f726c3..b95c3b0094fd 100644 --- a/drivers/mmc/core/block.c +++ b/drivers/mmc/core/block.c @@ -2034,8 +2034,20 @@ static struct mmc_blk_data *mmc_blk_alloc_req(struct mmc_card *card, int devidx, ret; devidx = ida_simple_get(&mmc_blk_ida, 0, max_devices, GFP_KERNEL); - if (devidx < 0) + if (devidx < 0) { + /* + * We get -ENOSPC because there are no more any available + * devidx. The reason may be that, either userspace haven't yet + * unmounted the partitions, which postpones mmc_blk_release() + * from being called, or the device has more partitions than + * what we support. + */ + if (devidx == -ENOSPC) + dev_err(mmc_dev(card->host), + "no more device IDs available\n"); + return ERR_PTR(devidx); + } md = kzalloc(sizeof(struct mmc_blk_data), GFP_KERNEL); if (!md) { |