This is a note to let you know that I've just added the patch titled
misc: rtsx: Fix an error handling path in rtsx_pci_probe()
to the 5.10-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
misc-rtsx-fix-an-error-handling-path-in-rtsx_pci_pro.patch
and it can be found in the queue-5.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit f12af81f01ef2b8a18754ac1940d812b4eff02f5
Author: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
Date: Wed Jun 15 07:33:44 2022 +0200
misc: rtsx: Fix an error handling path in rtsx_pci_probe()
[ Upstream commit 44fd1917314e9d4f53dd95dd65df1c152f503d3a ]
If an error occurs after a successful idr_alloc() call, the corresponding
resource must be released with idr_remove() as already done in the .remove
function.
Update the error handling path to add the missing idr_remove() call.
Fixes: ada8a8a13b13 ("mfd: Add realtek pcie card reader driver")
Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
Link: https://lore.kernel.org/r/e8dc41716cbf52fb37a12e70d8972848e69df6d6.1655271216.git.christophe.jaillet@xxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/misc/cardreader/rtsx_pcr.c b/drivers/misc/cardreader/rtsx_pcr.c
index 5d15607027e9..358b000b3a55 100644
--- a/drivers/misc/cardreader/rtsx_pcr.c
+++ b/drivers/misc/cardreader/rtsx_pcr.c
@@ -1529,7 +1529,7 @@ static int rtsx_pci_probe(struct pci_dev *pcidev,
pcr->remap_addr = ioremap(base, len);
if (!pcr->remap_addr) {
ret = -ENOMEM;
- goto free_handle;
+ goto free_idr;
}
pcr->rtsx_resv_buf = dma_alloc_coherent(&(pcidev->dev),
@@ -1591,6 +1591,10 @@ static int rtsx_pci_probe(struct pci_dev *pcidev,
pcr->rtsx_resv_buf, pcr->rtsx_resv_buf_addr);
unmap:
iounmap(pcr->remap_addr);
+free_idr:
+ spin_lock(&rtsx_pci_lock);
+ idr_remove(&rtsx_pci_idr, pcr->id);
+ spin_unlock(&rtsx_pci_lock);
free_handle:
kfree(handle);
free_pcr:
