dvr: Fix incorrect usage of `strerror`

`strerror` takes the `errno` directly as its argument,
negating it will result in an "Unknown error".

Signed-off-by: Tianyi Liu <i.pear@outlook.com>

diff --git a/src/dvr/dvr_db.c b/src/dvr/dvr_db.c
index 318b7f30e23e8ed6d8ae00f188a3c785e0f23290..84b4654a808d50a6d7ac3106d0d624c611dcb118 100644 (file)
--- a/src/dvr/dvr_db.c
+++ b/src/dvr/dvr_db.c
@@ -4933,7 +4933,7 @@ dvr_entry_delete(dvr_entry_t *de)
       r = deferred_unlink(filename, rdir);
       if(r && r != -ENOENT)
         tvhwarn(LS_DVR, "Unable to remove file '%s' from disk -- %s",
-               filename, strerror(-errno));
+               filename, strerror(errno));
 
       cmd = de->de_config->dvr_postremove;
       if (cmd && cmd[0])