commit c6368c2e90c223c41439b12ae7f14fffbd894dfa
from: Stefan Sperling <stsp@stsp.name>
date: Fri Oct 11 09:10:54 2019 UTC

properly handle read errors in got_packidx_init_hdr (found by jj@ scan-build)

commit - 366e0a5f18070d353035fdfa945719809c60f0aa
commit + c6368c2e90c223c41439b12ae7f14fffbd894dfa
blob - b39b11252e18b180de363de7f831b1a8087e69db
blob + b6f49c5941537ece4825344a137f3cbe7ac37e24
--- lib/pack.c
+++ lib/pack.c
@@ -126,9 +126,10 @@ got_packidx_init_hdr(struct got_packidx *p, int verify
 			goto done;
 		}
 		n = read(p->fd, h->version, sizeof(*h->version));
-		if (n < 0)
+		if (n < 0) {
 			err = got_error_from_errno("read");
-		else if (n != sizeof(*h->version)) {
+			goto done;
+		} else if (n != sizeof(*h->version)) {
 			err = got_error(GOT_ERR_BAD_PACKIDX);
 			goto done;
 		}
@@ -158,9 +159,10 @@ got_packidx_init_hdr(struct got_packidx *p, int verify
 			goto done;
 		}
 		n = read(p->fd, h->fanout_table, len_fanout);
-		if (n < 0)
+		if (n < 0) {
 			err = got_error_from_errno("read");
-		else if (n != len_fanout) {
+			goto done;
+		} else if (n != len_fanout) {
 			err = got_error(GOT_ERR_BAD_PACKIDX);
 			goto done;
 		}