From 0698c6ada44a8b4896d6ef12e0028b38cf9f8bbf Mon Sep 17 00:00:00 2001 From: Leah Rowe Date: Fri, 6 Mar 2026 18:55:31 +0000 Subject: util/nvmutil: warn about partial gbe file writes Signed-off-by: Leah Rowe --- util/nvmutil/nvmutil.c | 15 ++++++++++----- 1 file changed, 10 insertions(+), 5 deletions(-) diff --git a/util/nvmutil/nvmutil.c b/util/nvmutil/nvmutil.c index 1a235e01..7cad5055 100644 --- a/util/nvmutil/nvmutil.c +++ b/util/nvmutil/nvmutil.c @@ -759,11 +759,16 @@ write_gbe(void) static void write_gbe_part(size_t p) { - if (pwrite(fd, gbe_mem_offset(p, "pwrite"), - GBE_PART_SIZE, gbe_file_offset(p, "pwrite")) != GBE_PART_SIZE) { - err(ECANCELED, - "Can't write %d b to '%s' p%d", GBE_PART_SIZE, fname, p); - } + ssize_t rval = pwrite(fd, gbe_mem_offset(p, "pwrite"), + GBE_PART_SIZE, gbe_file_offset(p, "pwrite")); + + if (rval == -1) + err(ECANCELED, "Can't write %zx b to '%s' p%zx", + GBE_PART_SIZE, fname, p); + + if (rval != GBE_PART_SIZE) + err(ECANCELED, "CORRUPTED WRITE (%zx b) to file '%s' p%zx", + rval, fname, p); } /* -- cgit v1.2.1