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| author | Amaury Pouly <amaury.pouly@gmail.com> | 2014-04-23 23:43:27 +0200 |
|---|---|---|
| committer | Amaury Pouly <amaury.pouly@gmail.com> | 2014-04-23 23:43:27 +0200 |
| commit | 54dd77a5f83a0d923e62b782104d69a769f59dbe (patch) | |
| tree | 7919a2fd94d234c8f7203c6f9775d34a6164d8e9 /firmware/target/arm/imx233 | |
| parent | 532b8141ab24f386e35f389277b4f3bc67211ed5 (diff) | |
imx233: fix sdmmc driver bug when sector count is 0
Since the driver will read count-1 sectors, this will stuck the card.
Change-Id: Ib80484044acd1fad2914d3ffeb3940a13d2480c4
Diffstat (limited to 'firmware/target/arm/imx233')
| -rw-r--r-- | firmware/target/arm/imx233/sdmmc-imx233.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/firmware/target/arm/imx233/sdmmc-imx233.c b/firmware/target/arm/imx233/sdmmc-imx233.c index dbca78be79..e42842d3f7 100644 --- a/firmware/target/arm/imx233/sdmmc-imx233.c +++ b/firmware/target/arm/imx233/sdmmc-imx233.c @@ -596,6 +596,9 @@ static int __xfer_sectors(int drive, unsigned long start, int count, void *buf, static int transfer_sectors(int drive, unsigned long start, int count, void *buf, bool read) { int ret = 0; + // the function doesn't work when count is 0 + if(count == 0) + return ret; /* update disk activity */ disk_last_activity[drive] = current_tick; |