diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c index 9fa15bb9d118ee5ad2d9f34e23aab6777d09d105..c93aeb876125cab52f882eb37cdc6626b3524996 100644 --- a/drivers/block/zram/zram_drv.c +++ b/drivers/block/zram/zram_drv.c @@ -365,6 +365,9 @@ static ssize_t comp_algorithm_store(struct device *dev, struct zram *zram = dev_to_zram(dev); size_t sz; + if (!zcomp_available_algorithm(buf)) + return -EINVAL; + down_write(&zram->init_lock); if (init_done(zram)) { up_write(&zram->init_lock); @@ -378,9 +381,6 @@ static ssize_t comp_algorithm_store(struct device *dev, if (sz > 0 && zram->compressor[sz - 1] == '\n') zram->compressor[sz - 1] = 0x00; - if (!zcomp_available_algorithm(zram->compressor)) - len = -EINVAL; - up_write(&zram->init_lock); return len; }