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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-08 03:21:30 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-08 03:21:30 +0000 |
| commit | a72bbcd13c515079b13dfcc3f57e933f28235f48 (patch) | |
| tree | fd02a5f7642fbfb3141c285aa63a8f397fe41d76 /drivers/net/wireless/ath/wil6210/debugfs.c | |
| parent | Adding upstream version 4.19.249. (diff) | |
| download | linux-a72bbcd13c515079b13dfcc3f57e933f28235f48.tar.xz linux-a72bbcd13c515079b13dfcc3f57e933f28235f48.zip | |
Adding upstream version 4.19.260.upstream/4.19.260
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/net/wireless/ath/wil6210/debugfs.c')
| -rw-r--r-- | drivers/net/wireless/ath/wil6210/debugfs.c | 18 |
1 files changed, 6 insertions, 12 deletions
diff --git a/drivers/net/wireless/ath/wil6210/debugfs.c b/drivers/net/wireless/ath/wil6210/debugfs.c index 55a809cb3..3a46b319e 100644 --- a/drivers/net/wireless/ath/wil6210/debugfs.c +++ b/drivers/net/wireless/ath/wil6210/debugfs.c @@ -1002,20 +1002,14 @@ static ssize_t wil_write_file_wmi(struct file *file, const char __user *buf, void *cmd; int cmdlen = len - sizeof(struct wmi_cmd_hdr); u16 cmdid; - int rc, rc1; + int rc1; - if (cmdlen < 0) + if (cmdlen < 0 || *ppos != 0) return -EINVAL; - wmi = kmalloc(len, GFP_KERNEL); - if (!wmi) - return -ENOMEM; - - rc = simple_write_to_buffer(wmi, len, ppos, buf, len); - if (rc < 0) { - kfree(wmi); - return rc; - } + wmi = memdup_user(buf, len); + if (IS_ERR(wmi)) + return PTR_ERR(wmi); cmd = (cmdlen > 0) ? &wmi[1] : NULL; cmdid = le16_to_cpu(wmi->command_id); @@ -1025,7 +1019,7 @@ static ssize_t wil_write_file_wmi(struct file *file, const char __user *buf, wil_info(wil, "0x%04x[%d] -> %d\n", cmdid, cmdlen, rc1); - return rc; + return len; } static const struct file_operations fops_wmi = { |