diff options
| author | Harald Freudenberger <freude@linux.ibm.com> | 2020-09-09 11:59:43 +0200 |
|---|---|---|
| committer | Vasily Gorbik <gor@linux.ibm.com> | 2020-09-14 10:08:07 +0200 |
| commit | b6186d7fb53349efd274263a45f0b08749ccaa2d (patch) | |
| tree | 1b8b1d73a4267645581e93ec61c74f220d65b919 /drivers/s390/crypto | |
| parent | ca589ea8d1b64938329c016a5c07fc2eea985712 (diff) | |
| download | linux-b6186d7fb53349efd274263a45f0b08749ccaa2d.tar.bz2 | |
s390/zcrypt: fix kmalloc 256k failure
Tests showed that under stress conditions the kernel may
temporary fail to allocate 256k with kmalloc. However,
this fix reworks the related code in the cca_findcard2()
function to use kvmalloc instead.
Signed-off-by: Harald Freudenberger <freude@linux.ibm.com>
Reviewed-by: Ingo Franzki <ifranzki@linux.ibm.com>
Cc: Stable <stable@vger.kernel.org>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Diffstat (limited to 'drivers/s390/crypto')
| -rw-r--r-- | drivers/s390/crypto/zcrypt_ccamisc.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/s390/crypto/zcrypt_ccamisc.c b/drivers/s390/crypto/zcrypt_ccamisc.c index 3f5b61351cde..c793dcabd551 100644 --- a/drivers/s390/crypto/zcrypt_ccamisc.c +++ b/drivers/s390/crypto/zcrypt_ccamisc.c @@ -1692,9 +1692,9 @@ int cca_findcard2(u32 **apqns, u32 *nr_apqns, u16 cardnr, u16 domain, *nr_apqns = 0; /* fetch status of all crypto cards */ - device_status = kmalloc_array(MAX_ZDEV_ENTRIES_EXT, - sizeof(struct zcrypt_device_status_ext), - GFP_KERNEL); + device_status = kvmalloc_array(MAX_ZDEV_ENTRIES_EXT, + sizeof(struct zcrypt_device_status_ext), + GFP_KERNEL); if (!device_status) return -ENOMEM; zcrypt_device_status_mask_ext(device_status); @@ -1762,7 +1762,7 @@ int cca_findcard2(u32 **apqns, u32 *nr_apqns, u16 cardnr, u16 domain, verify = 0; } - kfree(device_status); + kvfree(device_status); return rc; } EXPORT_SYMBOL(cca_findcard2); |