From: Harshit Mogalapalli harshit.m.mogalapalli@oracle.com
commit cf3f15b8c6601c1dc70f85949788ee993dd9a439 upstream.
When mmc allocation succeeds, the error paths are not freeing mmc.
Fix the above issue by changing mmc_alloc_host() to devm_mmc_alloc_host() to simplify the error handling. Remove label 'probe_free_host' as devm_* api takes care of freeing, also remove mmc_free_host() from remove function as devm_* takes care of freeing.
Fixes: 4e268fed8b18 ("mmc: Add mmc driver for Sunplus SP7021") Reported-by: Dan Carpenter dan.carpenter@linaro.org Closes: https://lore.kernel.org/all/a3829ed3-d827-4b9d-827e-9cc24a3ec3bc@moroto.moun... Signed-off-by: Harshit Mogalapalli harshit.m.mogalapalli@oracle.com Reviewed-by: Dan Carpenter dan.carpenter@linaro.org Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20230809071812.547229-1-harshit.m.mogalapalli@orac... Signed-off-by: Ulf Hansson ulf.hansson@linaro.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/mmc/host/sunplus-mmc.c | 14 +++----------- 1 file changed, 3 insertions(+), 11 deletions(-)
diff --git a/drivers/mmc/host/sunplus-mmc.c b/drivers/mmc/host/sunplus-mmc.c index a55a87f64d2a..2bdebeb1f8e4 100644 --- a/drivers/mmc/host/sunplus-mmc.c +++ b/drivers/mmc/host/sunplus-mmc.c @@ -863,11 +863,9 @@ static int spmmc_drv_probe(struct platform_device *pdev) struct spmmc_host *host; int ret = 0;
- mmc = mmc_alloc_host(sizeof(*host), &pdev->dev); - if (!mmc) { - ret = -ENOMEM; - goto probe_free_host; - } + mmc = devm_mmc_alloc_host(&pdev->dev, sizeof(struct spmmc_host)); + if (!mmc) + return -ENOMEM;
host = mmc_priv(mmc); host->mmc = mmc; @@ -938,11 +936,6 @@ static int spmmc_drv_probe(struct platform_device *pdev)
clk_disable: clk_disable_unprepare(host->clk); - -probe_free_host: - if (mmc) - mmc_free_host(mmc); - return ret; }
@@ -956,7 +949,6 @@ static int spmmc_drv_remove(struct platform_device *dev) pm_runtime_put_noidle(&dev->dev); pm_runtime_disable(&dev->dev); platform_set_drvdata(dev, NULL); - mmc_free_host(host->mmc);
return 0; }