amdkfd: Copy from the proper user command pointer
8f1d57c172
("amdkfd: don't open-code memdup_user()") mistakenly uses
an uninitialized local pointer, gcc complains:
drivers/gpu/drm/amd/amdkfd/kfd_chardev.c: In function ‘kfd_ioctl_dbg_address_watch’:
drivers/gpu/drm/amd/amdkfd/kfd_chardev.c:562:12: warning: ‘args_buff’ may be used uninitialized in this function [-Wmaybe-uninitialized]
args_buff = memdup_user(args_buff,
^
Fix it.
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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parent
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commit
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@ -558,8 +558,7 @@ static int kfd_ioctl_dbg_address_watch(struct file *filep,
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return -EINVAL;
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/* this is the actual buffer to work with */
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args_buff = memdup_user(args_buff,
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args_buff = memdup_user(cmd_from_user,
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args->buf_size_in_bytes - sizeof(*args));
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if (IS_ERR(args_buff))
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return PTR_ERR(args_buff);
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