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Char/Misc driver fixes for 4.17-rc8

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Here are 4 small bugfixes for some char/misc drivers.  Well, really 3
 fixes and one fix for one of those fixes due to problems found by 0-day.
 
 This resolves some reported issues with the hwtracing drivers, and a
 reported regression for the thunderbolt subsystem.  All of these have
 been in linux-next for a while now with no reported problems.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-4.17-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver fixes from Greg KH:
 "Here are four small bugfixes for some char/misc drivers. Well, really
  three fixes and one fix for one of those fixes due to problems found
  by 0-day.

  This resolves some reported issues with the hwtracing drivers, and a
  reported regression for the thunderbolt subsystem. All of these have
  been in linux-next for a while now with no reported problems"

* tag 'char-misc-4.17-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  hwtracing: stm: fix build error on some arches
  intel_th: Use correct device when freeing buffers
  stm class: Use vmalloc for the master map
  thunderbolt: Handle NULL boot ACL entries properly
This commit is contained in:
Linus Torvalds 2018-06-02 10:05:45 -07:00
commit 6ac9f42cda
3 changed files with 8 additions and 7 deletions
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6
drivers/hwtracing/intel_th/msu.c
View file

@ -733,8 +733,8 @@ static int msc_buffer_win_alloc(struct msc *msc, unsigned int nr_blocks)
/* Reset the page to write-back before releasing */
set_memory_wb((unsigned long)win->block[i].bdesc, 1);
#endif
dma_free_coherent(msc_dev(msc), size, win->block[i].bdesc,
win->block[i].addr);
dma_free_coherent(msc_dev(msc)->parent->parent, size,
win->block[i].bdesc, win->block[i].addr);
}
kfree(win);
@ -769,7 +769,7 @@ static void msc_buffer_win_free(struct msc *msc, struct msc_window *win)
/* Reset the page to write-back before releasing */
set_memory_wb((unsigned long)win->block[i].bdesc, 1);
#endif
dma_free_coherent(msc_dev(win->msc), PAGE_SIZE,
dma_free_coherent(msc_dev(win->msc)->parent->parent, PAGE_SIZE,
win->block[i].bdesc, win->block[i].addr);
}

7
drivers/hwtracing/stm/core.c
View file

@ -19,6 +19,7 @@
#include <linux/stm.h>
#include <linux/fs.h>
#include <linux/mm.h>
#include <linux/vmalloc.h>
#include "stm.h"
#include <uapi/linux/stm.h>
@ -674,7 +675,7 @@ static void stm_device_release(struct device *dev)
{
struct stm_device *stm = to_stm_device(dev);
kfree(stm);
vfree(stm);
}
int stm_register_device(struct device *parent, struct stm_data *stm_data,
@ -691,7 +692,7 @@ int stm_register_device(struct device *parent, struct stm_data *stm_data,
return -EINVAL;
nmasters = stm_data->sw_end - stm_data->sw_start + 1;
stm = kzalloc(sizeof(*stm) + nmasters * sizeof(void *), GFP_KERNEL);
stm = vzalloc(sizeof(*stm) + nmasters * sizeof(void *));
if (!stm)
return -ENOMEM;
@ -744,7 +745,7 @@ int stm_register_device(struct device *parent, struct stm_data *stm_data,
/* matches device_initialize() above */
put_device(&stm->dev);
err_free:
kfree(stm);
vfree(stm);
return err;
}

2
drivers/thunderbolt/icm.c
View file

@ -1255,7 +1255,7 @@ static int icm_ar_get_boot_acl(struct tb *tb, uuid_t *uuids, size_t nuuids)
/* Map empty entries to null UUID */
uuid[0] = 0;
uuid[1] = 0;
} else {
} else if (uuid[0] != 0 || uuid[1] != 0) {
/* Upper two DWs are always one's */
uuid[2] = 0xffffffff;
uuid[3] = 0xffffffff;