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authorLinus Torvalds <torvalds@linux-foundation.org>2021-10-17 19:39:22 -1000
committerLinus Torvalds <torvalds@linux-foundation.org>2021-10-17 19:39:22 -1000
commitcd079b1f870729a9fe3294f800dff18b548f129d (patch)
treebf2770111a93cc4f037455e4ca6359bae0e1fd94
parentf2b3420b921d142b4c55f7445385bdab4060d754 (diff)
parent776c75010803849c1cc4f11031a2b3960ab05202 (diff)
downloadlinux-sh-cd079b1f870729a9fe3294f800dff18b548f129d.tar.gz
Merge tag 'libata-5.15-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata
Pull libata fixes from Damien Le Moal: "Two fixes for this cycle: - Fix a null pointer dereference in ahci-platform driver (from Hai) - Fix uninitialized variables in pata_legacy driver (from Dan)" * tag 'libata-5.15-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata: ata: ahci_platform: fix null-ptr-deref in ahci_platform_enable_regulators() pata_legacy: fix a couple uninitialized variable bugs
-rw-r--r--drivers/ata/libahci_platform.c5
-rw-r--r--drivers/ata/pata_legacy.c6
2 files changed, 5 insertions, 6 deletions
diff --git a/drivers/ata/libahci_platform.c b/drivers/ata/libahci_platform.c
index b2f552088291..0910441321f7 100644
--- a/drivers/ata/libahci_platform.c
+++ b/drivers/ata/libahci_platform.c
@@ -440,10 +440,7 @@ struct ahci_host_priv *ahci_platform_get_resources(struct platform_device *pdev,
hpriv->phy_regulator = devm_regulator_get(dev, "phy");
if (IS_ERR(hpriv->phy_regulator)) {
rc = PTR_ERR(hpriv->phy_regulator);
- if (rc == -EPROBE_DEFER)
- goto err_out;
- rc = 0;
- hpriv->phy_regulator = NULL;
+ goto err_out;
}
if (flags & AHCI_PLATFORM_GET_RESETS) {
diff --git a/drivers/ata/pata_legacy.c b/drivers/ata/pata_legacy.c
index c3e6592712c4..0a8bf09a5c19 100644
--- a/drivers/ata/pata_legacy.c
+++ b/drivers/ata/pata_legacy.c
@@ -352,7 +352,8 @@ static unsigned int pdc_data_xfer_vlb(struct ata_queued_cmd *qc,
iowrite32_rep(ap->ioaddr.data_addr, buf, buflen >> 2);
if (unlikely(slop)) {
- __le32 pad;
+ __le32 pad = 0;
+
if (rw == READ) {
pad = cpu_to_le32(ioread32(ap->ioaddr.data_addr));
memcpy(buf + buflen - slop, &pad, slop);
@@ -742,7 +743,8 @@ static unsigned int vlb32_data_xfer(struct ata_queued_cmd *qc,
ioread32_rep(ap->ioaddr.data_addr, buf, buflen >> 2);
if (unlikely(slop)) {
- __le32 pad;
+ __le32 pad = 0;
+
if (rw == WRITE) {
memcpy(&pad, buf + buflen - slop, slop);
iowrite32(le32_to_cpu(pad), ap->ioaddr.data_addr);