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libdasd: fix ioctl macro to return also positive return codes

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In case of an error the ioctl macro only returns errno to the calling
function.
This misses positive returncodes from ioctls.
Change the macro to also return positive return codes.

Signed-off-by: Stefan Haberland <sth@linux.ibm.com>
Reviewed-by: Jan Hoeppner <hoeppner@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
This commit is contained in:
Stefan Haberland
2022-10-27 15:51:00 +02:00
committed by Jan Höppner
parent 4e28047eb4
commit 3aa7f6e298
1 changed files with 6 additions and 4 deletions
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10
libdasd/dasd_ioctl.c
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@@ -28,11 +28,13 @@
#define RUN_IOCTL(fd, req, argp) \
do { \
if (ioctl(fd, req, argp) != 0) { \
int err = errno; \
if (err != EBADF) \
int rc = ioctl(fd, req, argp); \
if (rc != 0) { \
if (rc == -1) \
rc = errno; \
if (rc != EBADF) \
dasd_close_device(fd); \
return err; \
return rc; \
} \
} while (0)