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authorLinus Torvalds <torvalds@linux-foundation.org>2015-11-13 02:48:10 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2015-11-13 02:48:10 +0300
commita4d8c7c9f7754405c52c59e1b1e984df5749d7bb (patch)
treefd2e53ae06ffaaaa96cda893ec01da725878a94a /drivers/char/tpm/tpm_tis.c
parenta18e2fa5e670a1b84e66522b221c42875b02028a (diff)
parentcc25b994acfbc901429da682d0f73c190e960206 (diff)
downloadlinux-a4d8c7c9f7754405c52c59e1b1e984df5749d7bb.tar.xz
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
Pull security subsystem fixes from James Morris: "This includes several fixes for TPM, as well as a fix for the x.509 certificate parser to address CVE-2015-5327" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: X.509: Fix the time validation [ver #2] tpm: fix compat 'ppi' link handling in tpm_chip_register() tpm: fix missing migratable flag in sealing functionality for TPM2 TPM: revert the list handling logic fixed in 398a1e7 TPM: Avoid reference to potentially freed memory tpm_tis: restore IRQ vector in IO memory after failed probing tpm_tis: free irq after probing
Diffstat (limited to 'drivers/char/tpm/tpm_tis.c')
-rw-r--r--drivers/char/tpm/tpm_tis.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/char/tpm/tpm_tis.c b/drivers/char/tpm/tpm_tis.c
index 696ef1d56b4f..65f7eecc45b0 100644
--- a/drivers/char/tpm/tpm_tis.c
+++ b/drivers/char/tpm/tpm_tis.c
@@ -645,6 +645,7 @@ static int tpm_tis_init(struct device *dev, struct tpm_info *tpm_info,
{
u32 vendor, intfcaps, intmask;
int rc, i, irq_s, irq_e, probe;
+ int irq_r = -1;
struct tpm_chip *chip;
struct priv_data *priv;
@@ -751,6 +752,7 @@ static int tpm_tis_init(struct device *dev, struct tpm_info *tpm_info,
irq_s =
ioread8(chip->vendor.iobase +
TPM_INT_VECTOR(chip->vendor.locality));
+ irq_r = irq_s;
if (irq_s) {
irq_e = irq_s;
} else {
@@ -805,6 +807,8 @@ static int tpm_tis_init(struct device *dev, struct tpm_info *tpm_info,
iowrite32(intmask,
chip->vendor.iobase +
TPM_INT_ENABLE(chip->vendor.locality));
+
+ devm_free_irq(dev, i, chip);
}
}
if (chip->vendor.irq) {
@@ -831,7 +835,9 @@ static int tpm_tis_init(struct device *dev, struct tpm_info *tpm_info,
chip->vendor.iobase +
TPM_INT_ENABLE(chip->vendor.locality));
}
- }
+ } else if (irq_r != -1)
+ iowrite8(irq_r, chip->vendor.iobase +
+ TPM_INT_VECTOR(chip->vendor.locality));
if (chip->flags & TPM_CHIP_FLAG_TPM2) {
chip->vendor.timeout_a = msecs_to_jiffies(TPM2_TIMEOUT_A);