tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
[um] hostaudio: don't open-code memdup_user()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
+3
-7
+3
-7
arch/um/drivers/hostaudio_kern.c
+3
-7
arch/um/drivers/hostaudio_kern.c
···
105
105
printk(KERN_DEBUG "hostaudio: write called, count = %d\n", count);
106
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#endif
107
107
108
-
kbuf = kmalloc(count, GFP_KERNEL);
109
-
if (kbuf == NULL)
110
-
return -ENOMEM;
111
-
112
-
err = -EFAULT;
113
-
if (copy_from_user(kbuf, buffer, count))
114
-
goto out;
108
+
kbuf = memdup_user(buffer, count);
109
+
if (IS_ERR(kbuf))
110
+
return PTR_ERR(kbuf);
115
111
116
112
err = os_write_file(state->fd, kbuf, count);
117
113
if (err < 0)