Patch "mtd: rawnand: intel: check return value of devm_kasprintf()" has been added to the 6.1-stable tree

[Sasha Levin <sashal@xxxxxxxxxx>]

This is a note to let you know that I've just added the patch titled

    mtd: rawnand: intel: check return value of devm_kasprintf()

to the 6.1-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:
     mtd-rawnand-intel-check-return-value-of-devm_kasprin.patch
and it can be found in the queue-6.1 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit 4c0ef90e74d8cf08bd89666d4ddb0aa432796ab9
Author: Yi Yang <yiyang13@xxxxxxxxxx>
Date:   Thu Oct 19 06:55:37 2023 +0000

    mtd: rawnand: intel: check return value of devm_kasprintf()
    
    [ Upstream commit 74ac5b5e2375f1e8ef797ac7770887e9969f2516 ]
    
    devm_kasprintf() returns a pointer to dynamically allocated memory
    which can be NULL upon failure. Ensure the allocation was successful by
    checking the pointer validity.
    
    Fixes: 0b1039f016e8 ("mtd: rawnand: Add NAND controller support on Intel LGM SoC")
    Signed-off-by: Yi Yang <yiyang13@xxxxxxxxxx>
    Signed-off-by: Miquel Raynal <miquel.raynal@xxxxxxxxxxx>
    Link: https://lore.kernel.org/linux-mtd/20231019065537.318391-1-yiyang13@xxxxxxxxxx
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/drivers/mtd/nand/raw/intel-nand-controller.c b/drivers/mtd/nand/raw/intel-nand-controller.c
index 6f4cea81f97c0..1f8a33fb84607 100644
--- a/drivers/mtd/nand/raw/intel-nand-controller.c
+++ b/drivers/mtd/nand/raw/intel-nand-controller.c
@@ -619,6 +619,11 @@ static int ebu_nand_probe(struct platform_device *pdev)
 	ebu_host->cs_num = cs;
 
 	resname = devm_kasprintf(dev, GFP_KERNEL, "nand_cs%d", cs);
+	if (!resname) {
+		ret = -ENOMEM;
+		goto err_of_node_put;
+	}
+
 	ebu_host->cs[cs].chipaddr = devm_platform_ioremap_resource_byname(pdev,
 									  resname);
 	if (IS_ERR(ebu_host->cs[cs].chipaddr)) {
@@ -655,6 +660,11 @@ static int ebu_nand_probe(struct platform_device *pdev)
 	}
 
 	resname = devm_kasprintf(dev, GFP_KERNEL, "addr_sel%d", cs);
+	if (!resname) {
+		ret = -ENOMEM;
+		goto err_cleanup_dma;
+	}
+
 	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, resname);
 	if (!res) {
 		ret = -EINVAL;