| Message ID | 20230725120247.509422-1-yangyingliang@huawei.com (mailing list archive) |
|---|---|
| State | Accepted |
| Commit | 93fd2be6eb80fe37570fbd87652ec07a4f7c5b5a |
| Headers | show |
| Series | [-next] ASoC: SOF: ipc3-dtrace: Switch to memdup_user_nul() helper | expand |
On Tue, 25 Jul 2023 20:02:47 +0800, Yang Yingliang wrote: > Use memdup_user_nul() helper instead of open-coding to > simplify the code. > > Applied to https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next Thanks! [1/1] ASoC: SOF: ipc3-dtrace: Switch to memdup_user_nul() helper commit: 93fd2be6eb80fe37570fbd87652ec07a4f7c5b5a All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted. You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed. If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced. Please add any relevant lists and maintainers to the CCs when replying to this mail. Thanks, Mark
diff --git a/sound/soc/sof/ipc3-dtrace.c b/sound/soc/sof/ipc3-dtrace.c index 35da85a45a9a..bd07f0472efd 100644 --- a/sound/soc/sof/ipc3-dtrace.c +++ b/sound/soc/sof/ipc3-dtrace.c @@ -196,15 +196,9 @@ static ssize_t dfsentry_trace_filter_write(struct file *file, const char __user return -EINVAL; } - string = kmalloc(count + 1, GFP_KERNEL); - if (!string) - return -ENOMEM; - - if (copy_from_user(string, from, count)) { - ret = -EFAULT; - goto error; - } - string[count] = '\0'; + string = memdup_user_nul(from, count); + if (IS_ERR(string)) + return PTR_ERR(string); ret = trace_filter_parse(sdev, string, &num_elems, &elems); if (ret < 0)
Use memdup_user_nul() helper instead of open-coding to simplify the code. Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> --- sound/soc/sof/ipc3-dtrace.c | 12 +++--------- 1 file changed, 3 insertions(+), 9 deletions(-)