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ecore_drm: check if device is already opened before open and free 

check if fd is -1 before opening a device, so a device cannot be opened
twice.

Also check if fd is != -1 before closing it.
This commit is contained in:
Marcel Hollerbach 2016-01-11 21:43:12 +01:00
parent 5e0c1b7cc6
commit 093846aaea
1 changed files with 13 additions and 2 deletions
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15
src/lib/ecore_drm/ecore_drm_device.c
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@ -237,6 +237,7 @@ cont:
if ((dev = calloc(1, sizeof(Ecore_Drm_Device))))
{
dev->drm.fd = -1;
dev->drm.name = eeze_udev_syspath_get_devpath(device);
dev->drm.path = eina_stringshare_add(device);
@ -314,8 +315,15 @@ ecore_drm_device_open(Ecore_Drm_Device *dev)
/* check for valid device */
if ((!dev) || (!dev->drm.name)) return EINA_FALSE;
/* check if device is already opened */
if (dev->drm.fd != -1)
{
ERR("Device is already opened");
return EINA_FALSE;
}
/* DRM device node is needed immediately to keep going. */
dev->drm.fd =
dev->drm.fd =
_ecore_drm_launcher_device_open_no_pending(dev->drm.name, O_RDWR);
if (dev->drm.fd < 0) return EINA_FALSE;
@ -382,12 +390,15 @@ ecore_drm_device_open(Ecore_Drm_Device *dev)
return EINA_TRUE;
}
EAPI Eina_Bool
EAPI Eina_Bool
ecore_drm_device_close(Ecore_Drm_Device *dev)
{
/* check for valid device */
EINA_SAFETY_ON_NULL_RETURN_VAL(dev, EINA_FALSE);
/* check if device is opened */
if (dev->drm.fd == -1) return EINA_FALSE;
/* delete udev watch */
if (dev->watch) eeze_udev_watch_del(dev->watch);