canon_dr: Report early error

Exits get_pixelsize function when error is detected on previous
operation, avoiding unnecessary retries and reporting the correct
error code.
merge-requests/244/head
Denis West 2020-02-13 11:06:55 -05:00 zatwierdzone przez Denis West
rodzic 06cd16a0ea
commit df45126512
1 zmienionych plików z 5 dodań i 3 usunięć

Wyświetl plik

@ -3951,10 +3951,12 @@ get_pixelsize(struct scanner *s)
in, &inLen
);
if(ret == SANE_STATUS_GOOD &&
get_R_PSIZE_width(in) > 0 &&
get_R_PSIZE_length(in) > 0){
if(ret != SANE_STATUS_GOOD){
DBG (10, "get_pixelsize: error reading, status = %d\n", ret);
break;
}
if(get_R_PSIZE_width(in) > 0 && get_R_PSIZE_length(in) > 0){
DBG (15, "get_pixelsize: w:%d h:%d\n",
get_R_PSIZE_width(in) * s->u.dpi_x / 1200,
get_R_PSIZE_length(in) * s->u.dpi_y / 1200);