mtd: rawnand: cafe: Fix a resource leak in the error handling path of 'cafe_nand_probe()'

[ Upstream commit 6b430c7595e4eb95fae8fb54adc3c3ce002e75ae ]

A successful 'init_rs_non_canonical()' call should be balanced by a
corresponding 'free_rs()' call in the error handling path of the probe, as
already done in the remove function.

Update the error handling path accordingly.

Fixes: 8c61b7a7f4d4 ("[MTD] [NAND] Use rslib for CAFÉ ECC")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/fd313d3fb787458bcc73189e349f481133a2cdc9.1629532640.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/mtd/nand/raw/cafe_nand.c b/drivers/mtd/nand/raw/cafe_nand.c
index 2b94f385a1a88680deb6e3eeff597a79ffeb699a..04502d22efc9c6bf942d04b25169dd4cc9aee4d6 100644 (file)
--- a/drivers/mtd/nand/raw/cafe_nand.c
+++ b/drivers/mtd/nand/raw/cafe_nand.c
@@ -751,7 +751,7 @@ static int cafe_nand_probe(struct pci_dev *pdev,
                          "CAFE NAND", mtd);
        if (err) {
                dev_warn(&pdev->dev, "Could not register IRQ %d\n", pdev->irq);
                          "CAFE NAND", mtd);
        if (err) {
                dev_warn(&pdev->dev, "Could not register IRQ %d\n", pdev->irq);

-               goto out_ior;
+               goto out_free_rs;

        }
 
        /* Disable master reset, enable NAND clock */
        }
 
        /* Disable master reset, enable NAND clock */


@@ -795,6 +795,8 @@ static int cafe_nand_probe(struct pci_dev *pdev,
        /* Disable NAND IRQ in global IRQ mask register */
        cafe_writel(cafe, ~1 & cafe_readl(cafe, GLOBAL_IRQ_MASK), GLOBAL_IRQ_MASK);
        free_irq(pdev->irq, mtd);
        /* Disable NAND IRQ in global IRQ mask register */
        cafe_writel(cafe, ~1 & cafe_readl(cafe, GLOBAL_IRQ_MASK), GLOBAL_IRQ_MASK);
        free_irq(pdev->irq, mtd);

+ out_free_rs:
+       free_rs(cafe->rs);

  out_ior:
        pci_iounmap(pdev, cafe->mmio);
  out_free_mtd:
  out_ior:
        pci_iounmap(pdev, cafe->mmio);
  out_free_mtd: