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| author | Al Viro <viro@zeniv.linux.org.uk> | 2014-06-12 08:27:11 +0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2014-06-12 08:28:09 +0400 |
| commit | 9c1d5284c79fea050f115eadeec1dd1758e5c630 (patch) | |
| tree | 4d16fd5aad7ff4931e985c0128c5747f23561f8a /drivers/char | |
| parent | 5f073850602084fbcbb987948ff3e70ae273f7d2 (diff) | |
| parent | 9f12600fe425bc28f0ccba034a77783c09c15af4 (diff) | |
| download | linux-9c1d5284c79fea050f115eadeec1dd1758e5c630.tar.xz | |
Merge commit '9f12600fe425bc28f0ccba034a77783c09c15af4' into for-linus
Backmerge of dcache.c changes from mainline. It's that, or complete
rebase...
Conflicts:
fs/splice.c
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'drivers/char')
| -rw-r--r-- | drivers/char/random.c | 7 | ||||
| -rw-r--r-- | drivers/char/tpm/tpm_ppi.c | 8 |
2 files changed, 8 insertions, 7 deletions
diff --git a/drivers/char/random.c b/drivers/char/random.c index 6b75713d953a..102c50d38902 100644 --- a/drivers/char/random.c +++ b/drivers/char/random.c @@ -995,8 +995,11 @@ retry: ibytes = min_t(size_t, ibytes, have_bytes - reserved); if (ibytes < min) ibytes = 0; - entropy_count = max_t(int, 0, - entropy_count - (ibytes << (ENTROPY_SHIFT + 3))); + if (have_bytes >= ibytes + reserved) + entropy_count -= ibytes << (ENTROPY_SHIFT + 3); + else + entropy_count = reserved << (ENTROPY_SHIFT + 3); + if (cmpxchg(&r->entropy_count, orig, entropy_count) != orig) goto retry; diff --git a/drivers/char/tpm/tpm_ppi.c b/drivers/char/tpm/tpm_ppi.c index b3ea223585bd..61dcc8011ec7 100644 --- a/drivers/char/tpm/tpm_ppi.c +++ b/drivers/char/tpm/tpm_ppi.c @@ -328,13 +328,11 @@ int tpm_add_ppi(struct kobject *parent) /* Cache TPM ACPI handle and version string */ acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, ACPI_UINT32_MAX, ppi_callback, NULL, NULL, &tpm_ppi_handle); - if (tpm_ppi_handle == NULL) - return -ENODEV; - - return sysfs_create_group(parent, &ppi_attr_grp); + return tpm_ppi_handle ? sysfs_create_group(parent, &ppi_attr_grp) : 0; } void tpm_remove_ppi(struct kobject *parent) { - sysfs_remove_group(parent, &ppi_attr_grp); + if (tpm_ppi_handle) + sysfs_remove_group(parent, &ppi_attr_grp); } |