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| author | Harald Welte <laforge@gnumonks.org> | 2009-01-14 14:01:17 +0800 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2009-04-03 23:43:02 -0400 |
| commit | ba256b41bd58f0821c9c0e203982fb260f09bdeb (patch) | |
| tree | d56f5fa22fa4d82318e4e611ab5285ba5c5a5c1d /drivers/platform/x86 | |
| parent | c542aadeb4700bc316834d862d52ba3d2664f13a (diff) | |
| download | linux-ba256b41bd58f0821c9c0e203982fb260f09bdeb.tar.gz linux-ba256b41bd58f0821c9c0e203982fb260f09bdeb.tar.bz2 linux-ba256b41bd58f0821c9c0e203982fb260f09bdeb.zip | |
panasonic-laptop: use snprintf with PAGE_SIZE in sysfs attributes
Instead of just sprintf() into the page-sized buffer provided
by the sysfs/device_attribute API, we use snprintf with PAGE_SIZE
as an additional safeguard.
Signed-off-by: Martin Lucina <mato@kotelna.sk>
Signed-off-by: Harald Welte <laforge@gnumonks.org>
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/platform/x86')
| -rw-r--r-- | drivers/platform/x86/panasonic-laptop.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/platform/x86/panasonic-laptop.c b/drivers/platform/x86/panasonic-laptop.c index ecaca412a2a1..a5ce4bc202e3 100644 --- a/drivers/platform/x86/panasonic-laptop.c +++ b/drivers/platform/x86/panasonic-laptop.c @@ -367,7 +367,7 @@ static ssize_t show_numbatt(struct device *dev, struct device_attribute *attr, if (!acpi_pcc_retrieve_biosdata(pcc, pcc->sinf)) return -EIO; - return sprintf(buf, "%u\n", pcc->sinf[SINF_NUM_BATTERIES]); + return snprintf(buf, PAGE_SIZE, "%u\n", pcc->sinf[SINF_NUM_BATTERIES]); } static ssize_t show_lcdtype(struct device *dev, struct device_attribute *attr, @@ -379,7 +379,7 @@ static ssize_t show_lcdtype(struct device *dev, struct device_attribute *attr, if (!acpi_pcc_retrieve_biosdata(pcc, pcc->sinf)) return -EIO; - return sprintf(buf, "%u\n", pcc->sinf[SINF_LCD_TYPE]); + return snprintf(buf, PAGE_SIZE, "%u\n", pcc->sinf[SINF_LCD_TYPE]); } static ssize_t show_mute(struct device *dev, struct device_attribute *attr, @@ -391,7 +391,7 @@ static ssize_t show_mute(struct device *dev, struct device_attribute *attr, if (!acpi_pcc_retrieve_biosdata(pcc, pcc->sinf)) return -EIO; - return sprintf(buf, "%u\n", pcc->sinf[SINF_MUTE]); + return snprintf(buf, PAGE_SIZE, "%u\n", pcc->sinf[SINF_MUTE]); } static ssize_t show_sticky(struct device *dev, struct device_attribute *attr, @@ -403,7 +403,7 @@ static ssize_t show_sticky(struct device *dev, struct device_attribute *attr, if (!acpi_pcc_retrieve_biosdata(pcc, pcc->sinf)) return -EIO; - return sprintf(buf, "%u\n", pcc->sinf[SINF_STICKY_KEY]); + return snprintf(buf, PAGE_SIZE, "%u\n", pcc->sinf[SINF_STICKY_KEY]); } static ssize_t set_sticky(struct device *dev, struct device_attribute *attr, |