Merge "hsic_sysmon_test: Add check for userspace buffer size count" (1b2153e9) · Commits · e / devices / android_kernel_sony_msm8994_rework

arch/arm/mach-msm/hsic_sysmon_test.c

+5 −1

Original line number	Diff line number	Diff line
		@@ -63,9 +63,13 @@ static ssize_t sysmon_test_write(struct file file, const char __user ubuf,
		if (!dev)
		return -ENODEV;

		/* Add check for user buf count greater than RD_BUF_SIZE */
		if (count > RD_BUF_SIZE)
		count = RD_BUF_SIZE;

		if (copy_from_user(dev->buf, ubuf, count)) {
		pr_err("error copying for writing");
		return 0;
		return -EFAULT;
		}

		ret = hsic_sysmon_write(id, dev->buf, count, 1000);