diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/mmc/host/sdhci.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index 1ff15fa9b042..b1a3cd574c84 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -4193,6 +4193,12 @@ static void sdhci_allocate_bounce_buffer(struct sdhci_host *host) unsigned int bounce_size; int ret; + /* Drivers may have already allocated the buffer */ + if (host->bounce_buffer) { + bounce_size = host->bounce_buffer_size; + max_blocks = bounce_size / 512; + goto out; + } /* * Cap the bounce buffer at 64KB. Using a bigger bounce buffer * has diminishing returns, this is probably because SD/MMC @@ -4241,6 +4247,7 @@ static void sdhci_allocate_bounce_buffer(struct sdhci_host *host) host->bounce_buffer_size = bounce_size; +out: /* Lie about this since we're bouncing */ mmc->max_segs = max_blocks; mmc->max_seg_size = bounce_size; |