commit 2399b53d3a5f7a784efc54b86027b4f50f65ac41
from: Omar Polo <op@omarpolo.com>
date: Tue Jun 14 08:26:27 2022 UTC

style; set datalen only once

commit - 71393b5c7fb0a8cff0c8fd7890c3954e3f3a9599
commit + 2399b53d3a5f7a784efc54b86027b4f50f65ac41
blob - ba8b3d3062d617cc43cb3864675177c5e6a566b6
blob + e14bc4b63112230a31cd5231efc94a703c80f4e9
--- lib/patch.c
+++ lib/patch.c
@@ -224,6 +224,7 @@ recv_patch(struct imsgbuf *ibuf, int *done, struct got
 			return err;
 		}
 
+		datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
 		switch (imsg.hdr.type) {
 		case GOT_IMSG_PATCH_DONE:
 			if (h != NULL && h->len == 0)
@@ -236,7 +237,6 @@ recv_patch(struct imsgbuf *ibuf, int *done, struct got
 				goto done;
 			}
 			lastmode = -1;
-			datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
 			if (datalen != sizeof(hdr)) {
 				err = got_error(GOT_ERR_PRIVSEP_LEN);
 				goto done;
@@ -261,7 +261,6 @@ recv_patch(struct imsgbuf *ibuf, int *done, struct got
 				err = got_error(GOT_ERR_PRIVSEP_MSG);
 				goto done;
 			}
-			datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
 			t = imsg.data;
 			/* at least one char */
 			if (datalen < 2 || t[datalen-1] != '\0') {