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| author |   Tony Luck <tony.luck@intel.com> | 2005-06-29 15:21:41 -0700 |
|---|---|---|
| committer | Tony Luck <tony.luck@intel.com> | 2005-06-29 15:21:41 -0700 |
| commit | d18bfacff20f08aecf01bb971b110ca108eef3c7 (patch) | |
| tree | 255f862839c593c796e609328575b611e3f56cf3 /drivers/base/firmware_class.c | |
| parent | [IA64] Fix another IA64 preemption problem (diff) | |
| parent | [PATCH] Fix get_request nastiness (diff) | |
| download | linux-dev-d18bfacff20f08aecf01bb971b110ca108eef3c7.tar.xz linux-dev-d18bfacff20f08aecf01bb971b110ca108eef3c7.zip | |
Auto merge with /home/aegl/GIT/linus
Diffstat (limited to 'drivers/base/firmware_class.c')
| -rw-r--r-- | drivers/base/firmware_class.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/drivers/base/firmware_class.c b/drivers/base/firmware_class.c index 97fe13f7f07c..652281402c92 100644 --- a/drivers/base/firmware_class.c +++ b/drivers/base/firmware_class.c @@ -74,6 +74,8 @@ static ssize_t firmware_timeout_store(struct class *class, const char *buf, size_t count) { loading_timeout = simple_strtol(buf, NULL, 10); + if (loading_timeout < 0) + loading_timeout = 0; return count; } @@ -138,6 +140,10 @@ firmware_loading_store(struct class_device *class_dev, switch (loading) { case 1: down(&fw_lock); + if (!fw_priv->fw) { + up(&fw_lock); + break; + } vfree(fw_priv->fw->data); fw_priv->fw->data = NULL; fw_priv->fw->size = 0; @@ -178,7 +184,7 @@ firmware_data_read(struct kobject *kobj, down(&fw_lock); fw = fw_priv->fw; - if (test_bit(FW_STATUS_DONE, &fw_priv->status)) { + if (!fw || test_bit(FW_STATUS_DONE, &fw_priv->status)) { ret_count = -ENODEV; goto out; } @@ -238,9 +244,10 @@ firmware_data_write(struct kobject *kobj, if (!capable(CAP_SYS_RAWIO)) return -EPERM; + down(&fw_lock); fw = fw_priv->fw; - if (test_bit(FW_STATUS_DONE, &fw_priv->status)) { + if (!fw || test_bit(FW_STATUS_DONE, &fw_priv->status)) { retval = -ENODEV; goto out; } @@ -418,7 +425,7 @@ request_firmware(const struct firmware **firmware_p, const char *name, fw_priv = class_get_devdata(class_dev); - if (loading_timeout) { + if (loading_timeout > 0) { fw_priv->timeout.expires = jiffies + loading_timeout * HZ; add_timer(&fw_priv->timeout); } |