smb/client: Fix logically dead code

The if condition in collect_sample: can never be satisfied
because of a logical contradiction. The indicated dead code
may have performed some action; that action will never occur.

Fixes: 94ae8c3 ("smb: client: compress: LZ77 code improvements cleanup")
Signed-off-by: Advait Dhamorikar <[email protected]>
Signed-off-by: Steve French <[email protected]>

Author: advait-0

fs/smb/client/compress.c

@@ -166,7 +166,6 @@ static int collect_sample(const struct iov_iter *iter, ssize_t max, u8 *sample)
 	loff_t start = iter->xarray_start + iter->iov_offset;
 	pgoff_t last, index = start / PAGE_SIZE;
 	size_t len, off, foff;
-	ssize_t ret = 0;
 	void *p;
 	int s = 0;
 
@@ -193,9 +192,6 @@ static int collect_sample(const struct iov_iter *iter, ssize_t max, u8 *sample)
 				memcpy(&sample[s], p, len2);
 				kunmap_local(p);
 
-				if (ret < 0)
-					return ret;
-
 				s += len2;
 
 				if (len2 < SZ_2K || s >= max - SZ_2K)