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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-08 03:21:38 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-08 03:21:38 +0000
commit9351405e44641037ccff29c0d88d92c0617b5088 (patch)
treedfee90e28394ae31df1033696f8656add6c4fc26 /drivers/ntb
parentReleasing progress-linux version 4.19.249-2progress5u1. (diff)
downloadlinux-9351405e44641037ccff29c0d88d92c0617b5088.tar.xz
linux-9351405e44641037ccff29c0d88d92c0617b5088.zip
Merging upstream version 4.19.260.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/ntb')
-rw-r--r--drivers/ntb/test/ntb_tool.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/ntb/test/ntb_tool.c b/drivers/ntb/test/ntb_tool.c
index 311d6ab8d..6301aa413 100644
--- a/drivers/ntb/test/ntb_tool.c
+++ b/drivers/ntb/test/ntb_tool.c
@@ -367,14 +367,16 @@ static ssize_t tool_fn_write(struct tool_ctx *tc,
u64 bits;
int n;
+ if (*offp)
+ return 0;
+
buf = kmalloc(size + 1, GFP_KERNEL);
if (!buf)
return -ENOMEM;
- ret = simple_write_to_buffer(buf, size, offp, ubuf, size);
- if (ret < 0) {
+ if (copy_from_user(buf, ubuf, size)) {
kfree(buf);
- return ret;
+ return -EFAULT;
}
buf[size] = 0;