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util/nvmutil: stricter rw_gbe_file_exact

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we repeat these stteps later, but it's still good
to be exact here. these lower functions can
change.

Signed-off-by: Leah Rowe <leah@libreboot.org>
This commit is contained in:
Leah Rowe
2026-03-15 00:23:23 +00:00
parent 210f17b9d7
commit 66a9166004
1 changed files with 6 additions and 3 deletions
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util/nvmutil/nvmutil.c
+6 -3
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@@ -1817,9 +1817,10 @@ rw_gbe_file_exact(int fd, u8 *mem, size_t nrw,
{
size_t mem_addr;
size_t buf_addr;
ssize_t r;
if (mem == NULL)
goto err_rw_gbe_file_exact;
if (io_args(fd, mem, nrw, off, rw_type) == -1)
return -1;
mem_addr = (size_t)(void *)mem;
buf_addr = (size_t)(void *)buf;
@@ -1841,10 +1842,12 @@ rw_gbe_file_exact(int fd, u8 *mem, size_t nrw,
if (nrw > (size_t)GBE_PART_SIZE)
goto err_rw_gbe_file_exact;
return rw_file_exact(fd, mem, nrw, off, rw_type,
r = rw_file_exact(fd, mem, nrw, off, rw_type,
NO_LOOP_EAGAIN, LOOP_EINTR, MAX_ZERO_RW_RETRY,
OFF_ERR);
return rw_over_nrw(r, nrw);
err_rw_gbe_file_exact:
errno = EIO;
return -1;