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| author |   Qi Liu <liuqi115@huawei.com> | 2021-03-19 18:04:33 +0800 |
|---|---|---|
| committer |   Will Deacon <will@kernel.org> | 2021-03-25 12:55:44 +0000 |
| commit | fb62d67586afc046f3783d819985c737f6b0b666 (patch) | |
| tree | 812c6b649bc448360dbdf0c19c40e87f27e7962f /drivers/perf/arm_dmc620_pmu.c | |
| parent | drivers/perf: convert sysfs scnprintf family to sysfs_emit_at() and sysfs_emit() (diff) | |
| download | linux-dev-fb62d67586afc046f3783d819985c737f6b0b666.tar.xz linux-dev-fb62d67586afc046f3783d819985c737f6b0b666.zip | |
drivers/perf: convert sysfs sprintf family to sysfs_emit
sprintf does not know the PAGE_SIZE maximum of the temporary buffer
used for sysfs content and it's possible to overrun the buffer length.
Use sysfs_emit() function to ensures that no overrun is done.
Signed-off-by: Qi Liu <liuqi115@huawei.com>
Link: https://lore.kernel.org/r/1616148273-16374-4-git-send-email-liuqi115@huawei.com
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'drivers/perf/arm_dmc620_pmu.c')
| -rw-r--r-- | drivers/perf/arm_dmc620_pmu.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/perf/arm_dmc620_pmu.c b/drivers/perf/arm_dmc620_pmu.c index f2a85500258d..b6c2511d59af 100644 --- a/drivers/perf/arm_dmc620_pmu.c +++ b/drivers/perf/arm_dmc620_pmu.c @@ -113,7 +113,7 @@ dmc620_pmu_event_show(struct device *dev, eattr = container_of(attr, typeof(*eattr), attr); - return sprintf(page, "event=0x%x,clkdiv2=0x%x\n", eattr->eventid, eattr->clkdiv2); + return sysfs_emit(page, "event=0x%x,clkdiv2=0x%x\n", eattr->eventid, eattr->clkdiv2); } #define DMC620_PMU_EVENT_ATTR(_name, _eventid, _clkdiv2) \ |